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Finding the Fourth Proportional to 18,205.71, 25,124.35 and 10,248.22

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Solution

The fourth proportional to 18,205.71, 25,124.35 and 10,248.22 is: 14,142.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,205.71 : 25,124.35 = 10,248.22 : x
  2. Step 2: Convert to fraction form
    18,205.71/25,124.35 = 10,248.22/x
  3. Step 3: Cross multiply
    18,205.71x = 25,124.35 × 10,248.22
  4. Step 4: Simplify right side
    18,205.71x = 257,479,919.98
  5. Step 5: Solve for x
    x = 257,479,919.98/18,205.71
  6. Step 6: Final answer
    x = 14,142.81

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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.