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Finding the Fourth Proportional to 5,717.90, 8,619.70 and 5,336.89

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Solution

The fourth proportional to 5,717.90, 8,619.70 and 5,336.89 is: 8,045.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,717.90 : 8,619.70 = 5,336.89 : x
  2. Step 2: Convert to fraction form
    5,717.90/8,619.70 = 5,336.89/x
  3. Step 3: Cross multiply
    5,717.90x = 8,619.70 × 5,336.89
  4. Step 4: Simplify right side
    5,717.90x = 46,002,390.73
  5. Step 5: Solve for x
    x = 46,002,390.73/5,717.90
  6. Step 6: Final answer
    x = 8,045.33

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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.