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Finding the Fourth Proportional to 15,066.78, 20,792.19 and 8,352.69

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Solution

The fourth proportional to 15,066.78, 20,792.19 and 8,352.69 is: 11,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.78 : 20,792.19 = 8,352.69 : x
  2. Step 2: Convert to fraction form
    15,066.78/20,792.19 = 8,352.69/x
  3. Step 3: Cross multiply
    15,066.78x = 20,792.19 × 8,352.69
  4. Step 4: Simplify right side
    15,066.78x = 173,670,717.49
  5. Step 5: Solve for x
    x = 173,670,717.49/15,066.78
  6. Step 6: Final answer
    x = 11,526.73

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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.