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Finding the Fourth Proportional to 5,252.88, 7,248.36 and 3,156.88

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Solution

The fourth proportional to 5,252.88, 7,248.36 and 3,156.88 is: 4,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,252.88 : 7,248.36 = 3,156.88 : x
  2. Step 2: Convert to fraction form
    5,252.88/7,248.36 = 3,156.88/x
  3. Step 3: Cross multiply
    5,252.88x = 7,248.36 × 3,156.88
  4. Step 4: Simplify right side
    5,252.88x = 22,882,202.72
  5. Step 5: Solve for x
    x = 22,882,202.72/5,252.88
  6. Step 6: Final answer
    x = 4,356.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.