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Finding the Fourth Proportional to 25,761.84, 35,551.92 and 15,151.92

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Solution

The fourth proportional to 25,761.84, 35,551.92 and 15,151.92 is: 20,909.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,761.84 : 35,551.92 = 15,151.92 : x
  2. Step 2: Convert to fraction form
    25,761.84/35,551.92 = 15,151.92/x
  3. Step 3: Cross multiply
    25,761.84x = 35,551.92 × 15,151.92
  4. Step 4: Simplify right side
    25,761.84x = 538,679,847.69
  5. Step 5: Solve for x
    x = 538,679,847.69/25,761.84
  6. Step 6: Final answer
    x = 20,909.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.