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Finding the Fourth Proportional to 8,196.80, 11,308.40 and 4,659.52

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Solution

The fourth proportional to 8,196.80, 11,308.40 and 4,659.52 is: 6,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,196.80 : 11,308.40 = 4,659.52 : x
  2. Step 2: Convert to fraction form
    8,196.80/11,308.40 = 4,659.52/x
  3. Step 3: Cross multiply
    8,196.80x = 11,308.40 × 4,659.52
  4. Step 4: Simplify right side
    8,196.80x = 52,691,715.97
  5. Step 5: Solve for x
    x = 52,691,715.97/8,196.80
  6. Step 6: Final answer
    x = 6,428.33

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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.