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Finding the Fourth Proportional to 63,609.03, 87,863.13 and 48,409.38

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Solution

The fourth proportional to 63,609.03, 87,863.13 and 48,409.38 is: 66,867.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,609.03 : 87,863.13 = 48,409.38 : x
  2. Step 2: Convert to fraction form
    63,609.03/87,863.13 = 48,409.38/x
  3. Step 3: Cross multiply
    63,609.03x = 87,863.13 × 48,409.38
  4. Step 4: Simplify right side
    63,609.03x = 4,253,399,648.16
  5. Step 5: Solve for x
    x = 4,253,399,648.16/63,609.03
  6. Step 6: Final answer
    x = 66,867.86

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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.