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Finding the Fourth Proportional to 63,988.49, 88,306.52 and 35,699.64

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Solution

The fourth proportional to 63,988.49, 88,306.52 and 35,699.64 is: 49,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,988.49 : 88,306.52 = 35,699.64 : x
  2. Step 2: Convert to fraction form
    63,988.49/88,306.52 = 35,699.64/x
  3. Step 3: Cross multiply
    63,988.49x = 88,306.52 × 35,699.64
  4. Step 4: Simplify right side
    63,988.49x = 3,152,510,795.15
  5. Step 5: Solve for x
    x = 3,152,510,795.15/63,988.49
  6. Step 6: Final answer
    x = 49,266.85

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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.