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Finding the Fourth Proportional to 25,809.92, 38,706.48 and 15,934.40

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Solution

The fourth proportional to 25,809.92, 38,706.48 and 15,934.40 is: 23,896.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,809.92 : 38,706.48 = 15,934.40 : x
  2. Step 2: Convert to fraction form
    25,809.92/38,706.48 = 15,934.40/x
  3. Step 3: Cross multiply
    25,809.92x = 38,706.48 × 15,934.40
  4. Step 4: Simplify right side
    25,809.92x = 616,764,534.91
  5. Step 5: Solve for x
    x = 616,764,534.91/25,809.92
  6. Step 6: Final answer
    x = 23,896.41

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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.