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Finding the Fourth Proportional to 18,591.68, 25,657.12 and 10,633.92

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Solution

The fourth proportional to 18,591.68, 25,657.12 and 10,633.92 is: 14,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.68 : 25,657.12 = 10,633.92 : x
  2. Step 2: Convert to fraction form
    18,591.68/25,657.12 = 10,633.92/x
  3. Step 3: Cross multiply
    18,591.68x = 25,657.12 × 10,633.92
  4. Step 4: Simplify right side
    18,591.68x = 272,835,761.51
  5. Step 5: Solve for x
    x = 272,835,761.51/18,591.68
  6. Step 6: Final answer
    x = 14,675.15

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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.