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Finding the Fourth Proportional to 2,574.36, 3,861.54 and 1,035

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Solution

The fourth proportional to 2,574.36, 3,861.54 and 1,035 is: 1,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,574.36 : 3,861.54 = 1,035 : x
  2. Step 2: Convert to fraction form
    2,574.36/3,861.54 = 1,035/x
  3. Step 3: Cross multiply
    2,574.36x = 3,861.54 × 1,035
  4. Step 4: Simplify right side
    2,574.36x = 3,996,693.90
  5. Step 5: Solve for x
    x = 3,996,693.90/2,574.36
  6. Step 6: Final answer
    x = 1,552.50

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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.