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Finding the Fourth Proportional to 18,071.80, 24,938.49 and 10,113.82

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Solution

The fourth proportional to 18,071.80, 24,938.49 and 10,113.82 is: 13,956.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,071.80 : 24,938.49 = 10,113.82 : x
  2. Step 2: Convert to fraction form
    18,071.80/24,938.49 = 10,113.82/x
  3. Step 3: Cross multiply
    18,071.80x = 24,938.49 × 10,113.82
  4. Step 4: Simplify right side
    18,071.80x = 252,223,398.93
  5. Step 5: Solve for x
    x = 252,223,398.93/18,071.80
  6. Step 6: Final answer
    x = 13,956.74

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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.