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Finding the Fourth Proportional to 5,759.66, 8,640.28 and 1,862.76

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Solution

The fourth proportional to 5,759.66, 8,640.28 and 1,862.76 is: 2,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.66 : 8,640.28 = 1,862.76 : x
  2. Step 2: Convert to fraction form
    5,759.66/8,640.28 = 1,862.76/x
  3. Step 3: Cross multiply
    5,759.66x = 8,640.28 × 1,862.76
  4. Step 4: Simplify right side
    5,759.66x = 16,094,767.97
  5. Step 5: Solve for x
    x = 16,094,767.97/5,759.66
  6. Step 6: Final answer
    x = 2,794.40

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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.