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Finding the Fourth Proportional to 2,351.61, 3,525.57 and 889.95

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Solution

The fourth proportional to 2,351.61, 3,525.57 and 889.95 is: 1,334.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.61 : 3,525.57 = 889.95 : x
  2. Step 2: Convert to fraction form
    2,351.61/3,525.57 = 889.95/x
  3. Step 3: Cross multiply
    2,351.61x = 3,525.57 × 889.95
  4. Step 4: Simplify right side
    2,351.61x = 3,137,581.02
  5. Step 5: Solve for x
    x = 3,137,581.02/2,351.61
  6. Step 6: Final answer
    x = 1,334.23

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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.