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Finding the Fourth Proportional to 17,679.60, 24,398.47 and 9,722.43

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Solution

The fourth proportional to 17,679.60, 24,398.47 and 9,722.43 is: 13,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,679.60 : 24,398.47 = 9,722.43 : x
  2. Step 2: Convert to fraction form
    17,679.60/24,398.47 = 9,722.43/x
  3. Step 3: Cross multiply
    17,679.60x = 24,398.47 × 9,722.43
  4. Step 4: Simplify right side
    17,679.60x = 237,212,270.38
  5. Step 5: Solve for x
    x = 237,212,270.38/17,679.60
  6. Step 6: Final answer
    x = 13,417.29

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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.