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Finding the Fourth Proportional to 20,348.78, 30,473.96 and 17,593.16

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Solution

The fourth proportional to 20,348.78, 30,473.96 and 17,593.16 is: 26,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348.78 : 30,473.96 = 17,593.16 : x
  2. Step 2: Convert to fraction form
    20,348.78/30,473.96 = 17,593.16/x
  3. Step 3: Cross multiply
    20,348.78x = 30,473.96 × 17,593.16
  4. Step 4: Simplify right side
    20,348.78x = 536,133,099.49
  5. Step 5: Solve for x
    x = 536,133,099.49/20,348.78
  6. Step 6: Final answer
    x = 26,347.19

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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.