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Finding the Fourth Proportional to 18,493.16, 25,490.54 and 14,452.88

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Solution

The fourth proportional to 18,493.16, 25,490.54 and 14,452.88 is: 19,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.16 : 25,490.54 = 14,452.88 : x
  2. Step 2: Convert to fraction form
    18,493.16/25,490.54 = 14,452.88/x
  3. Step 3: Cross multiply
    18,493.16x = 25,490.54 × 14,452.88
  4. Step 4: Simplify right side
    18,493.16x = 368,411,624.43
  5. Step 5: Solve for x
    x = 368,411,624.43/18,493.16
  6. Step 6: Final answer
    x = 19,921.51

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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.