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Finding the Fourth Proportional to 12,248.15, 16,902.57 and 6,659.15

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Solution

The fourth proportional to 12,248.15, 16,902.57 and 6,659.15 is: 9,189.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.15 : 16,902.57 = 6,659.15 : x
  2. Step 2: Convert to fraction form
    12,248.15/16,902.57 = 6,659.15/x
  3. Step 3: Cross multiply
    12,248.15x = 16,902.57 × 6,659.15
  4. Step 4: Simplify right side
    12,248.15x = 112,556,664.50
  5. Step 5: Solve for x
    x = 112,556,664.50/12,248.15
  6. Step 6: Final answer
    x = 9,189.69

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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.