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Finding the Fourth Proportional to 18,952.65, 28,432.62 and 5,805.14

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Solution

The fourth proportional to 18,952.65, 28,432.62 and 5,805.14 is: 8,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,952.65 : 28,432.62 = 5,805.14 : x
  2. Step 2: Convert to fraction form
    18,952.65/28,432.62 = 5,805.14/x
  3. Step 3: Cross multiply
    18,952.65x = 28,432.62 × 5,805.14
  4. Step 4: Simplify right side
    18,952.65x = 165,055,197.50
  5. Step 5: Solve for x
    x = 165,055,197.50/18,952.65
  6. Step 6: Final answer
    x = 8,708.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.