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Finding the Fourth Proportional to 17,218.80, 24,139.13 and 17,218.80

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Solution

The fourth proportional to 17,218.80, 24,139.13 and 17,218.80 is: 24,139.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.80 : 24,139.13 = 17,218.80 : x
  2. Step 2: Convert to fraction form
    17,218.80/24,139.13 = 17,218.80/x
  3. Step 3: Cross multiply
    17,218.80x = 24,139.13 × 17,218.80
  4. Step 4: Simplify right side
    17,218.80x = 415,646,765.55
  5. Step 5: Solve for x
    x = 415,646,765.55/17,218.80
  6. Step 6: Final answer
    x = 24,139.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.