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Finding the Fourth Proportional to 4,862.80, 7,294.20 and 2,230.30

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Solution

The fourth proportional to 4,862.80, 7,294.20 and 2,230.30 is: 3,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,862.80 : 7,294.20 = 2,230.30 : x
  2. Step 2: Convert to fraction form
    4,862.80/7,294.20 = 2,230.30/x
  3. Step 3: Cross multiply
    4,862.80x = 7,294.20 × 2,230.30
  4. Step 4: Simplify right side
    4,862.80x = 16,268,254.26
  5. Step 5: Solve for x
    x = 16,268,254.26/4,862.80
  6. Step 6: Final answer
    x = 3,345.45

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Similar ratio
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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.