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Finding the Fourth Proportional to 5,720.59, 7,888.18 and 4,967.90

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Solution

The fourth proportional to 5,720.59, 7,888.18 and 4,967.90 is: 6,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.59 : 7,888.18 = 4,967.90 : x
  2. Step 2: Convert to fraction form
    5,720.59/7,888.18 = 4,967.90/x
  3. Step 3: Cross multiply
    5,720.59x = 7,888.18 × 4,967.90
  4. Step 4: Simplify right side
    5,720.59x = 39,187,689.42
  5. Step 5: Solve for x
    x = 39,187,689.42/5,720.59
  6. Step 6: Final answer
    x = 6,850.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.