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Finding the Fourth Proportional to 2,917.20, 4,366.20 and 2,053.20

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Solution

The fourth proportional to 2,917.20, 4,366.20 and 2,053.20 is: 3,073.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.20 : 4,366.20 = 2,053.20 : x
  2. Step 2: Convert to fraction form
    2,917.20/4,366.20 = 2,053.20/x
  3. Step 3: Cross multiply
    2,917.20x = 4,366.20 × 2,053.20
  4. Step 4: Simplify right side
    2,917.20x = 8,964,681.84
  5. Step 5: Solve for x
    x = 8,964,681.84/2,917.20
  6. Step 6: Final answer
    x = 3,073.04

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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.