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Finding the Fourth Proportional to 22,245.62, 30,710.12 and 17,198.42

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Solution

The fourth proportional to 22,245.62, 30,710.12 and 17,198.42 is: 23,742.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.62 : 30,710.12 = 17,198.42 : x
  2. Step 2: Convert to fraction form
    22,245.62/30,710.12 = 17,198.42/x
  3. Step 3: Cross multiply
    22,245.62x = 30,710.12 × 17,198.42
  4. Step 4: Simplify right side
    22,245.62x = 528,165,302.47
  5. Step 5: Solve for x
    x = 528,165,302.47/22,245.62
  6. Step 6: Final answer
    x = 23,742.45

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Double scale
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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.