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Finding the Fourth Proportional to 29,473.76, 40,660.22 and 18,874.10

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Solution

The fourth proportional to 29,473.76, 40,660.22 and 18,874.10 is: 26,037.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,473.76 : 40,660.22 = 18,874.10 : x
  2. Step 2: Convert to fraction form
    29,473.76/40,660.22 = 18,874.10/x
  3. Step 3: Cross multiply
    29,473.76x = 40,660.22 × 18,874.10
  4. Step 4: Simplify right side
    29,473.76x = 767,424,760.63
  5. Step 5: Solve for x
    x = 767,424,760.63/29,473.76
  6. Step 6: Final answer
    x = 26,037.56

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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.