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Finding the Fourth Proportional to 5,854.64, 8,781.92 and 2,389.46

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Solution

The fourth proportional to 5,854.64, 8,781.92 and 2,389.46 is: 3,584.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.64 : 8,781.92 = 2,389.46 : x
  2. Step 2: Convert to fraction form
    5,854.64/8,781.92 = 2,389.46/x
  3. Step 3: Cross multiply
    5,854.64x = 8,781.92 × 2,389.46
  4. Step 4: Simplify right side
    5,854.64x = 20,984,034.62
  5. Step 5: Solve for x
    x = 20,984,034.62/5,854.64
  6. Step 6: Final answer
    x = 3,584.17

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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.