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Finding the Fourth Proportional to 18,367.52, 25,008.08 and 18,309.20

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Solution

The fourth proportional to 18,367.52, 25,008.08 and 18,309.20 is: 24,928.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.52 : 25,008.08 = 18,309.20 : x
  2. Step 2: Convert to fraction form
    18,367.52/25,008.08 = 18,309.20/x
  3. Step 3: Cross multiply
    18,367.52x = 25,008.08 × 18,309.20
  4. Step 4: Simplify right side
    18,367.52x = 457,877,938.34
  5. Step 5: Solve for x
    x = 457,877,938.34/18,367.52
  6. Step 6: Final answer
    x = 24,928.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.