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Finding the Fourth Proportional to 5,472.88, 7,552.56 and 2,988.88

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Solution

The fourth proportional to 5,472.88, 7,552.56 and 2,988.88 is: 4,124.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,472.88 : 7,552.56 = 2,988.88 : x
  2. Step 2: Convert to fraction form
    5,472.88/7,552.56 = 2,988.88/x
  3. Step 3: Cross multiply
    5,472.88x = 7,552.56 × 2,988.88
  4. Step 4: Simplify right side
    5,472.88x = 22,573,695.53
  5. Step 5: Solve for x
    x = 22,573,695.53/5,472.88
  6. Step 6: Final answer
    x = 4,124.65

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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.