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Finding the Fourth Proportional to 5,755.90, 8,621.07 and 5,616.22

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Solution

The fourth proportional to 5,755.90, 8,621.07 and 5,616.22 is: 8,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,755.90 : 8,621.07 = 5,616.22 : x
  2. Step 2: Convert to fraction form
    5,755.90/8,621.07 = 5,616.22/x
  3. Step 3: Cross multiply
    5,755.90x = 8,621.07 × 5,616.22
  4. Step 4: Simplify right side
    5,755.90x = 48,417,825.76
  5. Step 5: Solve for x
    x = 48,417,825.76/5,755.90
  6. Step 6: Final answer
    x = 8,411.86

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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.