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Finding the Fourth Proportional to 8,065,863.70, 12,098,795.55 and 6,239,281.30

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Solution

The fourth proportional to 8,065,863.70, 12,098,795.55 and 6,239,281.30 is: 9,358,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,863.70 : 12,098,795.55 = 6,239,281.30 : x
  2. Step 2: Convert to fraction form
    8,065,863.70/12,098,795.55 = 6,239,281.30/x
  3. Step 3: Cross multiply
    8,065,863.70x = 12,098,795.55 × 6,239,281.30
  4. Step 4: Simplify right side
    8,065,863.70x = 75,487,788,827,638.22
  5. Step 5: Solve for x
    x = 75,487,788,827,638.22/8,065,863.70
  6. Step 6: Final answer
    x = 9,358,921.95

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Double scale
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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.