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Finding the Fourth Proportional to 84,944.70, 127,384.65 and 25,760.70

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Solution

The fourth proportional to 84,944.70, 127,384.65 and 25,760.70 is: 38,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,944.70 : 127,384.65 = 25,760.70 : x
  2. Step 2: Convert to fraction form
    84,944.70/127,384.65 = 25,760.70/x
  3. Step 3: Cross multiply
    84,944.70x = 127,384.65 × 25,760.70
  4. Step 4: Simplify right side
    84,944.70x = 3,281,517,753.26
  5. Step 5: Solve for x
    x = 3,281,517,753.26/84,944.70
  6. Step 6: Final answer
    x = 38,631.22

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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.