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Finding the Fourth Proportional to 10,392.72, 15,591.76 and 2,997.76

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Solution

The fourth proportional to 10,392.72, 15,591.76 and 2,997.76 is: 4,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,392.72 : 15,591.76 = 2,997.76 : x
  2. Step 2: Convert to fraction form
    10,392.72/15,591.76 = 2,997.76/x
  3. Step 3: Cross multiply
    10,392.72x = 15,591.76 × 2,997.76
  4. Step 4: Simplify right side
    10,392.72x = 46,740,354.46
  5. Step 5: Solve for x
    x = 46,740,354.46/10,392.72
  6. Step 6: Final answer
    x = 4,497.41

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1.5x scale

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.