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Finding the Fourth Proportional to 15,595.80, 21,523.46 and 8,883.52

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Solution

The fourth proportional to 15,595.80, 21,523.46 and 8,883.52 is: 12,259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.80 : 21,523.46 = 8,883.52 : x
  2. Step 2: Convert to fraction form
    15,595.80/21,523.46 = 8,883.52/x
  3. Step 3: Cross multiply
    15,595.80x = 21,523.46 × 8,883.52
  4. Step 4: Simplify right side
    15,595.80x = 191,204,087.38
  5. Step 5: Solve for x
    x = 191,204,087.38/15,595.80
  6. Step 6: Final answer
    x = 12,259.97

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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.