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Finding the Fourth Proportional to 6,607,679.38, 9,921,248.69 and 3,695,477.91

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Solution

The fourth proportional to 6,607,679.38, 9,921,248.69 and 3,695,477.91 is: 5,548,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,607,679.38 : 9,921,248.69 = 3,695,477.91 : x
  2. Step 2: Convert to fraction form
    6,607,679.38/9,921,248.69 = 3,695,477.91/x
  3. Step 3: Cross multiply
    6,607,679.38x = 9,921,248.69 × 3,695,477.91
  4. Step 4: Simplify right side
    6,607,679.38x = 36,663,755,345,732.88
  5. Step 5: Solve for x
    x = 36,663,755,345,732.88/6,607,679.38
  6. Step 6: Final answer
    x = 5,548,658.35

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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.