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Finding the Fourth Proportional to 36,805.70, 55,209.45 and 13,432.13

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Solution

The fourth proportional to 36,805.70, 55,209.45 and 13,432.13 is: 20,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,805.70 : 55,209.45 = 13,432.13 : x
  2. Step 2: Convert to fraction form
    36,805.70/55,209.45 = 13,432.13/x
  3. Step 3: Cross multiply
    36,805.70x = 55,209.45 × 13,432.13
  4. Step 4: Simplify right side
    36,805.70x = 741,580,233.58
  5. Step 5: Solve for x
    x = 741,580,233.58/36,805.70
  6. Step 6: Final answer
    x = 20,148.52

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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.