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Finding the Fourth Proportional to 3,714.96, 5,570.47 and 1,248.99

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Solution

The fourth proportional to 3,714.96, 5,570.47 and 1,248.99 is: 1,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.96 : 5,570.47 = 1,248.99 : x
  2. Step 2: Convert to fraction form
    3,714.96/5,570.47 = 1,248.99/x
  3. Step 3: Cross multiply
    3,714.96x = 5,570.47 × 1,248.99
  4. Step 4: Simplify right side
    3,714.96x = 6,957,442.00
  5. Step 5: Solve for x
    x = 6,957,442.00/3,714.96
  6. Step 6: Final answer
    x = 1,872.82

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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.