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Finding the Fourth Proportional to 14,040.47, 21,042.06 and 7,452.47

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Solution

The fourth proportional to 14,040.47, 21,042.06 and 7,452.47 is: 11,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.47 : 21,042.06 = 7,452.47 : x
  2. Step 2: Convert to fraction form
    14,040.47/21,042.06 = 7,452.47/x
  3. Step 3: Cross multiply
    14,040.47x = 21,042.06 × 7,452.47
  4. Step 4: Simplify right side
    14,040.47x = 156,815,215.68
  5. Step 5: Solve for x
    x = 156,815,215.68/14,040.47
  6. Step 6: Final answer
    x = 11,168.80

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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.