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Finding the Fourth Proportional to 2,024.60, 3,036.90 and 725.90

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Solution

The fourth proportional to 2,024.60, 3,036.90 and 725.90 is: 1,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,024.60 : 3,036.90 = 725.90 : x
  2. Step 2: Convert to fraction form
    2,024.60/3,036.90 = 725.90/x
  3. Step 3: Cross multiply
    2,024.60x = 3,036.90 × 725.90
  4. Step 4: Simplify right side
    2,024.60x = 2,204,485.71
  5. Step 5: Solve for x
    x = 2,204,485.71/2,024.60
  6. Step 6: Final answer
    x = 1,088.85

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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.