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Finding the Fourth Proportional to 63,993.76, 88,327.20 and 38,864.32

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Solution

The fourth proportional to 63,993.76, 88,327.20 and 38,864.32 is: 53,642.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,993.76 : 88,327.20 = 38,864.32 : x
  2. Step 2: Convert to fraction form
    63,993.76/88,327.20 = 38,864.32/x
  3. Step 3: Cross multiply
    63,993.76x = 88,327.20 × 38,864.32
  4. Step 4: Simplify right side
    63,993.76x = 3,432,776,565.50
  5. Step 5: Solve for x
    x = 3,432,776,565.50/63,993.76
  6. Step 6: Final answer
    x = 53,642.36

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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.