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Finding the Fourth Proportional to 22,655.71, 34,119.16 and 20,635.57

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Solution

The fourth proportional to 22,655.71, 34,119.16 and 20,635.57 is: 31,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.71 : 34,119.16 = 20,635.57 : x
  2. Step 2: Convert to fraction form
    22,655.71/34,119.16 = 20,635.57/x
  3. Step 3: Cross multiply
    22,655.71x = 34,119.16 × 20,635.57
  4. Step 4: Simplify right side
    22,655.71x = 704,068,314.52
  5. Step 5: Solve for x
    x = 704,068,314.52/22,655.71
  6. Step 6: Final answer
    x = 31,076.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.