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Finding the Fourth Proportional to 63,902.76, 88,164.90 and 38,743.08

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Solution

The fourth proportional to 63,902.76, 88,164.90 and 38,743.08 is: 53,452.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,902.76 : 88,164.90 = 38,743.08 : x
  2. Step 2: Convert to fraction form
    63,902.76/88,164.90 = 38,743.08/x
  3. Step 3: Cross multiply
    63,902.76x = 88,164.90 × 38,743.08
  4. Step 4: Simplify right side
    63,902.76x = 3,415,779,773.89
  5. Step 5: Solve for x
    x = 3,415,779,773.89/63,902.76
  6. Step 6: Final answer
    x = 53,452.77

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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.