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Finding the Fourth Proportional to 5,716.90, 8,618.20 and 5,335.89

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Solution

The fourth proportional to 5,716.90, 8,618.20 and 5,335.89 is: 8,043.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,716.90 : 8,618.20 = 5,335.89 : x
  2. Step 2: Convert to fraction form
    5,716.90/8,618.20 = 5,335.89/x
  3. Step 3: Cross multiply
    5,716.90x = 8,618.20 × 5,335.89
  4. Step 4: Simplify right side
    5,716.90x = 45,985,721.54
  5. Step 5: Solve for x
    x = 45,985,721.54/5,716.90
  6. Step 6: Final answer
    x = 8,043.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.