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Finding the Fourth Proportional to 29,581.16, 40,820.16 and 16,149.68

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Solution

The fourth proportional to 29,581.16, 40,820.16 and 16,149.68 is: 22,285.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,581.16 : 40,820.16 = 16,149.68 : x
  2. Step 2: Convert to fraction form
    29,581.16/40,820.16 = 16,149.68/x
  3. Step 3: Cross multiply
    29,581.16x = 40,820.16 × 16,149.68
  4. Step 4: Simplify right side
    29,581.16x = 659,232,521.55
  5. Step 5: Solve for x
    x = 659,232,521.55/29,581.16
  6. Step 6: Final answer
    x = 22,285.55

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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.