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Finding the Fourth Proportional to 18,134.70, 25,029.05 and 10,585.50

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Solution

The fourth proportional to 18,134.70, 25,029.05 and 10,585.50 is: 14,609.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.70 : 25,029.05 = 10,585.50 : x
  2. Step 2: Convert to fraction form
    18,134.70/25,029.05 = 10,585.50/x
  3. Step 3: Cross multiply
    18,134.70x = 25,029.05 × 10,585.50
  4. Step 4: Simplify right side
    18,134.70x = 264,944,955.85
  5. Step 5: Solve for x
    x = 264,944,955.85/18,134.70
  6. Step 6: Final answer
    x = 14,609.83

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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.