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Finding the Fourth Proportional to 8,641.23, 11,924.46 and 4,865.28

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Solution

The fourth proportional to 8,641.23, 11,924.46 and 4,865.28 is: 6,713.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,641.23 : 11,924.46 = 4,865.28 : x
  2. Step 2: Convert to fraction form
    8,641.23/11,924.46 = 4,865.28/x
  3. Step 3: Cross multiply
    8,641.23x = 11,924.46 × 4,865.28
  4. Step 4: Simplify right side
    8,641.23x = 58,015,836.75
  5. Step 5: Solve for x
    x = 58,015,836.75/8,641.23
  6. Step 6: Final answer
    x = 6,713.84

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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.