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Finding the Fourth Proportional to 5,920.90, 8,881.35 and 4,863.85

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Solution

The fourth proportional to 5,920.90, 8,881.35 and 4,863.85 is: 7,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.90 : 8,881.35 = 4,863.85 : x
  2. Step 2: Convert to fraction form
    5,920.90/8,881.35 = 4,863.85/x
  3. Step 3: Cross multiply
    5,920.90x = 8,881.35 × 4,863.85
  4. Step 4: Simplify right side
    5,920.90x = 43,197,554.20
  5. Step 5: Solve for x
    x = 43,197,554.20/5,920.90
  6. Step 6: Final answer
    x = 7,295.78

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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.