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Finding the Fourth Proportional to 10,967.48, 15,135.22 and 5,999.48

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Solution

The fourth proportional to 10,967.48, 15,135.22 and 5,999.48 is: 8,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,967.48 : 15,135.22 = 5,999.48 : x
  2. Step 2: Convert to fraction form
    10,967.48/15,135.22 = 5,999.48/x
  3. Step 3: Cross multiply
    10,967.48x = 15,135.22 × 5,999.48
  4. Step 4: Simplify right side
    10,967.48x = 90,803,449.69
  5. Step 5: Solve for x
    x = 90,803,449.69/10,967.48
  6. Step 6: Final answer
    x = 8,279.34

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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.