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Finding the Fourth Proportional to 2,913.92, 4,008.96 and 2,410.88

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Solution

The fourth proportional to 2,913.92, 4,008.96 and 2,410.88 is: 3,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.92 : 4,008.96 = 2,410.88 : x
  2. Step 2: Convert to fraction form
    2,913.92/4,008.96 = 2,410.88/x
  3. Step 3: Cross multiply
    2,913.92x = 4,008.96 × 2,410.88
  4. Step 4: Simplify right side
    2,913.92x = 9,665,121.48
  5. Step 5: Solve for x
    x = 9,665,121.48/2,913.92
  6. Step 6: Final answer
    x = 3,316.88

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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.