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Finding the Fourth Proportional to 5,344.87, 7,375.90 and 2,987.01

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Solution

The fourth proportional to 5,344.87, 7,375.90 and 2,987.01 is: 4,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,344.87 : 7,375.90 = 2,987.01 : x
  2. Step 2: Convert to fraction form
    5,344.87/7,375.90 = 2,987.01/x
  3. Step 3: Cross multiply
    5,344.87x = 7,375.90 × 2,987.01
  4. Step 4: Simplify right side
    5,344.87x = 22,031,887.06
  5. Step 5: Solve for x
    x = 22,031,887.06/5,344.87
  6. Step 6: Final answer
    x = 4,122.06

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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.