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Finding the Fourth Proportional to 29,093.20, 40,143.76 and 17,154.88

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Solution

The fourth proportional to 29,093.20, 40,143.76 and 17,154.88 is: 23,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,093.20 : 40,143.76 = 17,154.88 : x
  2. Step 2: Convert to fraction form
    29,093.20/40,143.76 = 17,154.88/x
  3. Step 3: Cross multiply
    29,093.20x = 40,143.76 × 17,154.88
  4. Step 4: Simplify right side
    29,093.20x = 688,661,385.55
  5. Step 5: Solve for x
    x = 688,661,385.55/29,093.20
  6. Step 6: Final answer
    x = 23,670.87

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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.