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Finding the Fourth Proportional to 18,125.29, 27,190.47 and 5,646.22

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Solution

The fourth proportional to 18,125.29, 27,190.47 and 5,646.22 is: 8,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.29 : 27,190.47 = 5,646.22 : x
  2. Step 2: Convert to fraction form
    18,125.29/27,190.47 = 5,646.22/x
  3. Step 3: Cross multiply
    18,125.29x = 27,190.47 × 5,646.22
  4. Step 4: Simplify right side
    18,125.29x = 153,523,375.52
  5. Step 5: Solve for x
    x = 153,523,375.52/18,125.29
  6. Step 6: Final answer
    x = 8,470.12

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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.