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Finding the Fourth Proportional to 71,033.92, 98,026.80 and 38,768.64

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Solution

The fourth proportional to 71,033.92, 98,026.80 and 38,768.64 is: 53,500.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,033.92 : 98,026.80 = 38,768.64 : x
  2. Step 2: Convert to fraction form
    71,033.92/98,026.80 = 38,768.64/x
  3. Step 3: Cross multiply
    71,033.92x = 98,026.80 × 38,768.64
  4. Step 4: Simplify right side
    71,033.92x = 3,800,365,719.55
  5. Step 5: Solve for x
    x = 3,800,365,719.55/71,033.92
  6. Step 6: Final answer
    x = 53,500.72

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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.