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Finding the Fourth Proportional to 3,343.55, 4,613.15 and 2,165.00

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Solution

The fourth proportional to 3,343.55, 4,613.15 and 2,165.00 is: 2,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,343.55 : 4,613.15 = 2,165.00 : x
  2. Step 2: Convert to fraction form
    3,343.55/4,613.15 = 2,165.00/x
  3. Step 3: Cross multiply
    3,343.55x = 4,613.15 × 2,165.00
  4. Step 4: Simplify right side
    3,343.55x = 9,987,452.10
  5. Step 5: Solve for x
    x = 9,987,452.10/3,343.55
  6. Step 6: Final answer
    x = 2,987.08

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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.