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Finding the Fourth Proportional to 68,906.64, 95,074.92 and 39,098.64

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Solution

The fourth proportional to 68,906.64, 95,074.92 and 39,098.64 is: 53,946.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,906.64 : 95,074.92 = 39,098.64 : x
  2. Step 2: Convert to fraction form
    68,906.64/95,074.92 = 39,098.64/x
  3. Step 3: Cross multiply
    68,906.64x = 95,074.92 × 39,098.64
  4. Step 4: Simplify right side
    68,906.64x = 3,717,300,070.11
  5. Step 5: Solve for x
    x = 3,717,300,070.11/68,906.64
  6. Step 6: Final answer
    x = 53,946.91

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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.