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Finding the Fourth Proportional to 84,753.76, 127,127.57 and 25,587.89

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Solution

The fourth proportional to 84,753.76, 127,127.57 and 25,587.89 is: 38,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,753.76 : 127,127.57 = 25,587.89 : x
  2. Step 2: Convert to fraction form
    84,753.76/127,127.57 = 25,587.89/x
  3. Step 3: Cross multiply
    84,753.76x = 127,127.57 × 25,587.89
  4. Step 4: Simplify right side
    84,753.76x = 3,252,926,467.01
  5. Step 5: Solve for x
    x = 3,252,926,467.01/84,753.76
  6. Step 6: Final answer
    x = 38,380.91

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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.