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Finding the Fourth Proportional to 51,415.92, 77,123.88 and 26,839.92

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Solution

The fourth proportional to 51,415.92, 77,123.88 and 26,839.92 is: 40,259.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,415.92 : 77,123.88 = 26,839.92 : x
  2. Step 2: Convert to fraction form
    51,415.92/77,123.88 = 26,839.92/x
  3. Step 3: Cross multiply
    51,415.92x = 77,123.88 × 26,839.92
  4. Step 4: Simplify right side
    51,415.92x = 2,069,998,769.29
  5. Step 5: Solve for x
    x = 2,069,998,769.29/51,415.92
  6. Step 6: Final answer
    x = 40,259.88

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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.