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Finding the Fourth Proportional to 2,710.92, 4,062.96 and 2,160.84

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Solution

The fourth proportional to 2,710.92, 4,062.96 and 2,160.84 is: 3,238.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.92 : 4,062.96 = 2,160.84 : x
  2. Step 2: Convert to fraction form
    2,710.92/4,062.96 = 2,160.84/x
  3. Step 3: Cross multiply
    2,710.92x = 4,062.96 × 2,160.84
  4. Step 4: Simplify right side
    2,710.92x = 8,779,406.49
  5. Step 5: Solve for x
    x = 8,779,406.49/2,710.92
  6. Step 6: Final answer
    x = 3,238.53

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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.