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Finding the Fourth Proportional to 2,348.64, 3,521.76 and 1,252.80

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Solution

The fourth proportional to 2,348.64, 3,521.76 and 1,252.80 is: 1,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.64 : 3,521.76 = 1,252.80 : x
  2. Step 2: Convert to fraction form
    2,348.64/3,521.76 = 1,252.80/x
  3. Step 3: Cross multiply
    2,348.64x = 3,521.76 × 1,252.80
  4. Step 4: Simplify right side
    2,348.64x = 4,412,060.93
  5. Step 5: Solve for x
    x = 4,412,060.93/2,348.64
  6. Step 6: Final answer
    x = 1,878.56

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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.