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Finding the Fourth Proportional to 18,937.99, 26,134.56 and 10,869.52

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Solution

The fourth proportional to 18,937.99, 26,134.56 and 10,869.52 is: 15,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.99 : 26,134.56 = 10,869.52 : x
  2. Step 2: Convert to fraction form
    18,937.99/26,134.56 = 10,869.52/x
  3. Step 3: Cross multiply
    18,937.99x = 26,134.56 × 10,869.52
  4. Step 4: Simplify right side
    18,937.99x = 284,070,122.61
  5. Step 5: Solve for x
    x = 284,070,122.61/18,937.99
  6. Step 6: Final answer
    x = 15,000.01

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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.