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Finding the Fourth Proportional to 2,898.84, 4,347.18 and 1,255.08

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Solution

The fourth proportional to 2,898.84, 4,347.18 and 1,255.08 is: 1,882.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.84 : 4,347.18 = 1,255.08 : x
  2. Step 2: Convert to fraction form
    2,898.84/4,347.18 = 1,255.08/x
  3. Step 3: Cross multiply
    2,898.84x = 4,347.18 × 1,255.08
  4. Step 4: Simplify right side
    2,898.84x = 5,456,058.67
  5. Step 5: Solve for x
    x = 5,456,058.67/2,898.84
  6. Step 6: Final answer
    x = 1,882.15

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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.