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Finding the Fourth Proportional to 18,937.01, 26,133.17 and 10,983.93

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Solution

The fourth proportional to 18,937.01, 26,133.17 and 10,983.93 is: 15,157.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.01 : 26,133.17 = 10,983.93 : x
  2. Step 2: Convert to fraction form
    18,937.01/26,133.17 = 10,983.93/x
  3. Step 3: Cross multiply
    18,937.01x = 26,133.17 × 10,983.93
  4. Step 4: Simplify right side
    18,937.01x = 287,044,855.04
  5. Step 5: Solve for x
    x = 287,044,855.04/18,937.01
  6. Step 6: Final answer
    x = 15,157.88

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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.