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Finding the Fourth Proportional to 11,158.12, 15,394.02 and 6,959.08

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Solution

The fourth proportional to 11,158.12, 15,394.02 and 6,959.08 is: 9,600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,158.12 : 15,394.02 = 6,959.08 : x
  2. Step 2: Convert to fraction form
    11,158.12/15,394.02 = 6,959.08/x
  3. Step 3: Cross multiply
    11,158.12x = 15,394.02 × 6,959.08
  4. Step 4: Simplify right side
    11,158.12x = 107,128,216.70
  5. Step 5: Solve for x
    x = 107,128,216.70/11,158.12
  6. Step 6: Final answer
    x = 9,600.92

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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.