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Finding the Fourth Proportional to 16,560.99, 22,859.18 and 11,258.89

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Solution

The fourth proportional to 16,560.99, 22,859.18 and 11,258.89 is: 15,540.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,560.99 : 22,859.18 = 11,258.89 : x
  2. Step 2: Convert to fraction form
    16,560.99/22,859.18 = 11,258.89/x
  3. Step 3: Cross multiply
    16,560.99x = 22,859.18 × 11,258.89
  4. Step 4: Simplify right side
    16,560.99x = 257,368,993.11
  5. Step 5: Solve for x
    x = 257,368,993.11/16,560.99
  6. Step 6: Final answer
    x = 15,540.68

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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.