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Finding the Fourth Proportional to 18,882.27, 26,058.81 and 12,497.87

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Solution

The fourth proportional to 18,882.27, 26,058.81 and 12,497.87 is: 17,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.27 : 26,058.81 = 12,497.87 : x
  2. Step 2: Convert to fraction form
    18,882.27/26,058.81 = 12,497.87/x
  3. Step 3: Cross multiply
    18,882.27x = 26,058.81 × 12,497.87
  4. Step 4: Simplify right side
    18,882.27x = 325,679,442.57
  5. Step 5: Solve for x
    x = 325,679,442.57/18,882.27
  6. Step 6: Final answer
    x = 17,247.90

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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.