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Finding the Fourth Proportional to 4,580.80, 6,862.80 and 2,627.20

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Solution

The fourth proportional to 4,580.80, 6,862.80 and 2,627.20 is: 3,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,580.80 : 6,862.80 = 2,627.20 : x
  2. Step 2: Convert to fraction form
    4,580.80/6,862.80 = 2,627.20/x
  3. Step 3: Cross multiply
    4,580.80x = 6,862.80 × 2,627.20
  4. Step 4: Simplify right side
    4,580.80x = 18,029,948.16
  5. Step 5: Solve for x
    x = 18,029,948.16/4,580.80
  6. Step 6: Final answer
    x = 3,935.98

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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.