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Finding the Fourth Proportional to 8,955.24, 12,362.66 and 6,961.32

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Solution

The fourth proportional to 8,955.24, 12,362.66 and 6,961.32 is: 9,610.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.24 : 12,362.66 = 6,961.32 : x
  2. Step 2: Convert to fraction form
    8,955.24/12,362.66 = 6,961.32/x
  3. Step 3: Cross multiply
    8,955.24x = 12,362.66 × 6,961.32
  4. Step 4: Simplify right side
    8,955.24x = 86,060,432.31
  5. Step 5: Solve for x
    x = 86,060,432.31/8,955.24
  6. Step 6: Final answer
    x = 9,610.06

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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.