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Finding the Fourth Proportional to 18,502.88, 25,534.08 and 10,949.12

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Solution

The fourth proportional to 18,502.88, 25,534.08 and 10,949.12 is: 15,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.88 : 25,534.08 = 10,949.12 : x
  2. Step 2: Convert to fraction form
    18,502.88/25,534.08 = 10,949.12/x
  3. Step 3: Cross multiply
    18,502.88x = 25,534.08 × 10,949.12
  4. Step 4: Simplify right side
    18,502.88x = 279,575,706.01
  5. Step 5: Solve for x
    x = 279,575,706.01/18,502.88
  6. Step 6: Final answer
    x = 15,109.85

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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.