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Finding the Fourth Proportional to 4,221.65, 5,826.10 and 2,543.59

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Solution

The fourth proportional to 4,221.65, 5,826.10 and 2,543.59 is: 3,510.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.65 : 5,826.10 = 2,543.59 : x
  2. Step 2: Convert to fraction form
    4,221.65/5,826.10 = 2,543.59/x
  3. Step 3: Cross multiply
    4,221.65x = 5,826.10 × 2,543.59
  4. Step 4: Simplify right side
    4,221.65x = 14,819,180.57
  5. Step 5: Solve for x
    x = 14,819,180.57/4,221.65
  6. Step 6: Final answer
    x = 3,510.28

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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.