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Finding the Fourth Proportional to 2,417.01, 3,625.52 and 685.41

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Solution

The fourth proportional to 2,417.01, 3,625.52 and 685.41 is: 1,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.01 : 3,625.52 = 685.41 : x
  2. Step 2: Convert to fraction form
    2,417.01/3,625.52 = 685.41/x
  3. Step 3: Cross multiply
    2,417.01x = 3,625.52 × 685.41
  4. Step 4: Simplify right side
    2,417.01x = 2,484,967.66
  5. Step 5: Solve for x
    x = 2,484,967.66/2,417.01
  6. Step 6: Final answer
    x = 1,028.12

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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.