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Finding the Fourth Proportional to 61,572.65, 84,978.87 and 37,385.64

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Solution

The fourth proportional to 61,572.65, 84,978.87 and 37,385.64 is: 51,597.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572.65 : 84,978.87 = 37,385.64 : x
  2. Step 2: Convert to fraction form
    61,572.65/84,978.87 = 37,385.64/x
  3. Step 3: Cross multiply
    61,572.65x = 84,978.87 × 37,385.64
  4. Step 4: Simplify right side
    61,572.65x = 3,176,989,441.43
  5. Step 5: Solve for x
    x = 3,176,989,441.43/61,572.65
  6. Step 6: Final answer
    x = 51,597.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.