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Finding the Fourth Proportional to 63,788.64, 88,019.64 and 35,490.48

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Solution

The fourth proportional to 63,788.64, 88,019.64 and 35,490.48 is: 48,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,788.64 : 88,019.64 = 35,490.48 : x
  2. Step 2: Convert to fraction form
    63,788.64/88,019.64 = 35,490.48/x
  3. Step 3: Cross multiply
    63,788.64x = 88,019.64 × 35,490.48
  4. Step 4: Simplify right side
    63,788.64x = 3,123,859,273.03
  5. Step 5: Solve for x
    x = 3,123,859,273.03/63,788.64
  6. Step 6: Final answer
    x = 48,972.03

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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.