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Finding the Fourth Proportional to 71,886.32, 107,906.16 and 63,618.92

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Solution

The fourth proportional to 71,886.32, 107,906.16 and 63,618.92 is: 95,496.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,886.32 : 107,906.16 = 63,618.92 : x
  2. Step 2: Convert to fraction form
    71,886.32/107,906.16 = 63,618.92/x
  3. Step 3: Cross multiply
    71,886.32x = 107,906.16 × 63,618.92
  4. Step 4: Simplify right side
    71,886.32x = 6,864,873,360.55
  5. Step 5: Solve for x
    x = 6,864,873,360.55/71,886.32
  6. Step 6: Final answer
    x = 95,496.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.