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Finding the Fourth Proportional to 18,149.71, 25,046.64 and 10,194.52

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Solution

The fourth proportional to 18,149.71, 25,046.64 and 10,194.52 is: 14,068.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.71 : 25,046.64 = 10,194.52 : x
  2. Step 2: Convert to fraction form
    18,149.71/25,046.64 = 10,194.52/x
  3. Step 3: Cross multiply
    18,149.71x = 25,046.64 × 10,194.52
  4. Step 4: Simplify right side
    18,149.71x = 255,338,472.41
  5. Step 5: Solve for x
    x = 255,338,472.41/18,149.71
  6. Step 6: Final answer
    x = 14,068.46

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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.