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Finding the Fourth Proportional to 84,688.92, 127,033.29 and 25,524.59

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Solution

The fourth proportional to 84,688.92, 127,033.29 and 25,524.59 is: 38,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,688.92 : 127,033.29 = 25,524.59 : x
  2. Step 2: Convert to fraction form
    84,688.92/127,033.29 = 25,524.59/x
  3. Step 3: Cross multiply
    84,688.92x = 127,033.29 × 25,524.59
  4. Step 4: Simplify right side
    84,688.92x = 3,242,472,515.98
  5. Step 5: Solve for x
    x = 3,242,472,515.98/84,688.92
  6. Step 6: Final answer
    x = 38,286.86

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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.