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Finding the Fourth Proportional to 11,867.06, 16,375.29 and 6,561.02

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Solution

The fourth proportional to 11,867.06, 16,375.29 and 6,561.02 is: 9,053.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.06 : 16,375.29 = 6,561.02 : x
  2. Step 2: Convert to fraction form
    11,867.06/16,375.29 = 6,561.02/x
  3. Step 3: Cross multiply
    11,867.06x = 16,375.29 × 6,561.02
  4. Step 4: Simplify right side
    11,867.06x = 107,438,605.20
  5. Step 5: Solve for x
    x = 107,438,605.20/11,867.06
  6. Step 6: Final answer
    x = 9,053.51

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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.