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Finding the Fourth Proportional to 7,543.92, 11,334.33 and 7,124.29

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Solution

The fourth proportional to 7,543.92, 11,334.33 and 7,124.29 is: 10,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,543.92 : 11,334.33 = 7,124.29 : x
  2. Step 2: Convert to fraction form
    7,543.92/11,334.33 = 7,124.29/x
  3. Step 3: Cross multiply
    7,543.92x = 11,334.33 × 7,124.29
  4. Step 4: Simplify right side
    7,543.92x = 80,749,025.54
  5. Step 5: Solve for x
    x = 80,749,025.54/7,543.92
  6. Step 6: Final answer
    x = 10,703.85

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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.