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Finding the Fourth Proportional to 15,600.65, 21,523.55 and 8,883.82

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Solution

The fourth proportional to 15,600.65, 21,523.55 and 8,883.82 is: 12,256.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,600.65 : 21,523.55 = 8,883.82 : x
  2. Step 2: Convert to fraction form
    15,600.65/21,523.55 = 8,883.82/x
  3. Step 3: Cross multiply
    15,600.65x = 21,523.55 × 8,883.82
  4. Step 4: Simplify right side
    15,600.65x = 191,211,245.73
  5. Step 5: Solve for x
    x = 191,211,245.73/15,600.65
  6. Step 6: Final answer
    x = 12,256.62

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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.