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Finding the Fourth Proportional to 10,959.80, 16,432.11 and 7,013.48

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Solution

The fourth proportional to 10,959.80, 16,432.11 and 7,013.48 is: 10,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.80 : 16,432.11 = 7,013.48 : x
  2. Step 2: Convert to fraction form
    10,959.80/16,432.11 = 7,013.48/x
  3. Step 3: Cross multiply
    10,959.80x = 16,432.11 × 7,013.48
  4. Step 4: Simplify right side
    10,959.80x = 115,246,192.68
  5. Step 5: Solve for x
    x = 115,246,192.68/10,959.80
  6. Step 6: Final answer
    x = 10,515.36

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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.