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Finding the Fourth Proportional to 29,453.78, 40,648.93 and 16,711.11

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Solution

The fourth proportional to 29,453.78, 40,648.93 and 16,711.11 is: 23,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,453.78 : 40,648.93 = 16,711.11 : x
  2. Step 2: Convert to fraction form
    29,453.78/40,648.93 = 16,711.11/x
  3. Step 3: Cross multiply
    29,453.78x = 40,648.93 × 16,711.11
  4. Step 4: Simplify right side
    29,453.78x = 679,288,758.68
  5. Step 5: Solve for x
    x = 679,288,758.68/29,453.78
  6. Step 6: Final answer
    x = 23,062.87

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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.