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Finding the Fourth Proportional to 6,604,681.52, 9,895,728.44 and 5,164,808.91

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Solution

The fourth proportional to 6,604,681.52, 9,895,728.44 and 5,164,808.91 is: 7,738,381.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,604,681.52 : 9,895,728.44 = 5,164,808.91 : x
  2. Step 2: Convert to fraction form
    6,604,681.52/9,895,728.44 = 5,164,808.91/x
  3. Step 3: Cross multiply
    6,604,681.52x = 9,895,728.44 × 5,164,808.91
  4. Step 4: Simplify right side
    6,604,681.52x = 51,109,546,417,852.40
  5. Step 5: Solve for x
    x = 51,109,546,417,852.40/6,604,681.52
  6. Step 6: Final answer
    x = 7,738,381.67

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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.