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Finding the Fourth Proportional to 7,041.78, 10,562.04 and 2,112.52

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Solution

The fourth proportional to 7,041.78, 10,562.04 and 2,112.52 is: 3,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,041.78 : 10,562.04 = 2,112.52 : x
  2. Step 2: Convert to fraction form
    7,041.78/10,562.04 = 2,112.52/x
  3. Step 3: Cross multiply
    7,041.78x = 10,562.04 × 2,112.52
  4. Step 4: Simplify right side
    7,041.78x = 22,312,520.74
  5. Step 5: Solve for x
    x = 22,312,520.74/7,041.78
  6. Step 6: Final answer
    x = 3,168.59

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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.