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Finding the Fourth Proportional to 63,938.82, 88,235.68 and 35,643.90

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Solution

The fourth proportional to 63,938.82, 88,235.68 and 35,643.90 is: 49,188.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,938.82 : 88,235.68 = 35,643.90 : x
  2. Step 2: Convert to fraction form
    63,938.82/88,235.68 = 35,643.90/x
  3. Step 3: Cross multiply
    63,938.82x = 88,235.68 × 35,643.90
  4. Step 4: Simplify right side
    63,938.82x = 3,145,063,754.35
  5. Step 5: Solve for x
    x = 3,145,063,754.35/63,938.82
  6. Step 6: Final answer
    x = 49,188.64

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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.