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Finding the Fourth Proportional to 63,565.66, 87,724.20 and 38,423.26

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Solution

The fourth proportional to 63,565.66, 87,724.20 and 38,423.26 is: 53,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,565.66 : 87,724.20 = 38,423.26 : x
  2. Step 2: Convert to fraction form
    63,565.66/87,724.20 = 38,423.26/x
  3. Step 3: Cross multiply
    63,565.66x = 87,724.20 × 38,423.26
  4. Step 4: Simplify right side
    63,565.66x = 3,370,649,744.89
  5. Step 5: Solve for x
    x = 3,370,649,744.89/63,565.66
  6. Step 6: Final answer
    x = 53,026.27

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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.