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Finding the Fourth Proportional to 18,510.80, 25,541.33 and 10,552.82

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Solution

The fourth proportional to 18,510.80, 25,541.33 and 10,552.82 is: 14,560.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.80 : 25,541.33 = 10,552.82 : x
  2. Step 2: Convert to fraction form
    18,510.80/25,541.33 = 10,552.82/x
  3. Step 3: Cross multiply
    18,510.80x = 25,541.33 × 10,552.82
  4. Step 4: Simplify right side
    18,510.80x = 269,532,877.58
  5. Step 5: Solve for x
    x = 269,532,877.58/18,510.80
  6. Step 6: Final answer
    x = 14,560.85

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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.