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Finding the Fourth Proportional to 15,581,978.38, 23,374,142.48 and 4,651,304.59

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Solution

The fourth proportional to 15,581,978.38, 23,374,142.48 and 4,651,304.59 is: 6,977,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581,978.38 : 23,374,142.48 = 4,651,304.59 : x
  2. Step 2: Convert to fraction form
    15,581,978.38/23,374,142.48 = 4,651,304.59/x
  3. Step 3: Cross multiply
    15,581,978.38x = 23,374,142.48 × 4,651,304.59
  4. Step 4: Simplify right side
    15,581,978.38x = 108,720,256,204,537.98
  5. Step 5: Solve for x
    x = 108,720,256,204,537.98/15,581,978.38
  6. Step 6: Final answer
    x = 6,977,307.60

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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.