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Finding the Fourth Proportional to 18,242.99, 27,372.98 and 17,948.15

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Solution

The fourth proportional to 18,242.99, 27,372.98 and 17,948.15 is: 26,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.99 : 27,372.98 = 17,948.15 : x
  2. Step 2: Convert to fraction form
    18,242.99/27,372.98 = 17,948.15/x
  3. Step 3: Cross multiply
    18,242.99x = 27,372.98 × 17,948.15
  4. Step 4: Simplify right side
    18,242.99x = 491,294,124.38
  5. Step 5: Solve for x
    x = 491,294,124.38/18,242.99
  6. Step 6: Final answer
    x = 26,930.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.