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Finding the Fourth Proportional to 17,938.24, 26,882.70 and 9,154.70

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Solution

The fourth proportional to 17,938.24, 26,882.70 and 9,154.70 is: 13,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938.24 : 26,882.70 = 9,154.70 : x
  2. Step 2: Convert to fraction form
    17,938.24/26,882.70 = 9,154.70/x
  3. Step 3: Cross multiply
    17,938.24x = 26,882.70 × 9,154.70
  4. Step 4: Simplify right side
    17,938.24x = 246,103,053.69
  5. Step 5: Solve for x
    x = 246,103,053.69/17,938.24
  6. Step 6: Final answer
    x = 13,719.46

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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.