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Finding the Fourth Proportional to 22,254.51, 30,711.95 and 12,182.95

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Solution

The fourth proportional to 22,254.51, 30,711.95 and 12,182.95 is: 16,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,254.51 : 30,711.95 = 12,182.95 : x
  2. Step 2: Convert to fraction form
    22,254.51/30,711.95 = 12,182.95/x
  3. Step 3: Cross multiply
    22,254.51x = 30,711.95 × 12,182.95
  4. Step 4: Simplify right side
    22,254.51x = 374,162,013.56
  5. Step 5: Solve for x
    x = 374,162,013.56/22,254.51
  6. Step 6: Final answer
    x = 16,812.87

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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.