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Finding the Fourth Proportional to 29,557.62, 40,806.12 and 20,496.12

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Solution

The fourth proportional to 29,557.62, 40,806.12 and 20,496.12 is: 28,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,557.62 : 40,806.12 = 20,496.12 : x
  2. Step 2: Convert to fraction form
    29,557.62/40,806.12 = 20,496.12/x
  3. Step 3: Cross multiply
    29,557.62x = 40,806.12 × 20,496.12
  4. Step 4: Simplify right side
    29,557.62x = 836,367,132.25
  5. Step 5: Solve for x
    x = 836,367,132.25/29,557.62
  6. Step 6: Final answer
    x = 28,296.16

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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.