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Finding the Fourth Proportional to 8,803,164.30, 13,204,746.45 and 7,683,420.30

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Solution

The fourth proportional to 8,803,164.30, 13,204,746.45 and 7,683,420.30 is: 11,525,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803,164.30 : 13,204,746.45 = 7,683,420.30 : x
  2. Step 2: Convert to fraction form
    8,803,164.30/13,204,746.45 = 7,683,420.30/x
  3. Step 3: Cross multiply
    8,803,164.30x = 13,204,746.45 × 7,683,420.30
  4. Step 4: Simplify right side
    8,803,164.30x = 101,457,616,930,282.92
  5. Step 5: Solve for x
    x = 101,457,616,930,282.92/8,803,164.30
  6. Step 6: Final answer
    x = 11,525,130.45

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Double scale
Find fourth proportional to 8,803,165.30, 13,204,747.95 and 7,683,421.30
Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.