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Finding the Fourth Proportional to 18,614.58, 25,689.33 and 10,657.86

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Solution

The fourth proportional to 18,614.58, 25,689.33 and 10,657.86 is: 14,708.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.58 : 25,689.33 = 10,657.86 : x
  2. Step 2: Convert to fraction form
    18,614.58/25,689.33 = 10,657.86/x
  3. Step 3: Cross multiply
    18,614.58x = 25,689.33 × 10,657.86
  4. Step 4: Simplify right side
    18,614.58x = 273,793,282.63
  5. Step 5: Solve for x
    x = 273,793,282.63/18,614.58
  6. Step 6: Final answer
    x = 14,708.54

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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.