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Finding the Fourth Proportional to 64,051.80, 88,387.90 and 35,759.31

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Solution

The fourth proportional to 64,051.80, 88,387.90 and 35,759.31 is: 49,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,051.80 : 88,387.90 = 35,759.31 : x
  2. Step 2: Convert to fraction form
    64,051.80/88,387.90 = 35,759.31/x
  3. Step 3: Cross multiply
    64,051.80x = 88,387.90 × 35,759.31
  4. Step 4: Simplify right side
    64,051.80x = 3,160,690,316.35
  5. Step 5: Solve for x
    x = 3,160,690,316.35/64,051.80
  6. Step 6: Final answer
    x = 49,345.85

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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.