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Finding the Fourth Proportional to 18,592.92, 25,649.68 and 11,875.20

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Solution

The fourth proportional to 18,592.92, 25,649.68 and 11,875.20 is: 16,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592.92 : 25,649.68 = 11,875.20 : x
  2. Step 2: Convert to fraction form
    18,592.92/25,649.68 = 11,875.20/x
  3. Step 3: Cross multiply
    18,592.92x = 25,649.68 × 11,875.20
  4. Step 4: Simplify right side
    18,592.92x = 304,595,079.94
  5. Step 5: Solve for x
    x = 304,595,079.94/18,592.92
  6. Step 6: Final answer
    x = 16,382.32

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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.