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Finding the Fourth Proportional to 2,714.88, 4,069.47 and 1,254.99

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Solution

The fourth proportional to 2,714.88, 4,069.47 and 1,254.99 is: 1,881.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,714.88 : 4,069.47 = 1,254.99 : x
  2. Step 2: Convert to fraction form
    2,714.88/4,069.47 = 1,254.99/x
  3. Step 3: Cross multiply
    2,714.88x = 4,069.47 × 1,254.99
  4. Step 4: Simplify right side
    2,714.88x = 5,107,144.16
  5. Step 5: Solve for x
    x = 5,107,144.16/2,714.88
  6. Step 6: Final answer
    x = 1,881.17

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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.