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Finding the Fourth Proportional to 15,067.05, 20,792.69 and 8,352.81

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Solution

The fourth proportional to 15,067.05, 20,792.69 and 8,352.81 is: 11,526.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.05 : 20,792.69 = 8,352.81 : x
  2. Step 2: Convert to fraction form
    15,067.05/20,792.69 = 8,352.81/x
  3. Step 3: Cross multiply
    15,067.05x = 20,792.69 × 8,352.81
  4. Step 4: Simplify right side
    15,067.05x = 173,677,347.19
  5. Step 5: Solve for x
    x = 173,677,347.19/15,067.05
  6. Step 6: Final answer
    x = 11,526.96

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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.