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Finding the Fourth Proportional to 63,780.66, 88,019.97 and 35,486.58

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Solution

The fourth proportional to 63,780.66, 88,019.97 and 35,486.58 is: 48,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,780.66 : 88,019.97 = 35,486.58 : x
  2. Step 2: Convert to fraction form
    63,780.66/88,019.97 = 35,486.58/x
  3. Step 3: Cross multiply
    63,780.66x = 88,019.97 × 35,486.58
  4. Step 4: Simplify right side
    63,780.66x = 3,123,527,707.00
  5. Step 5: Solve for x
    x = 3,123,527,707.00/63,780.66
  6. Step 6: Final answer
    x = 48,972.96

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1.5x scale

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.