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Finding the Fourth Proportional to 15,066.55, 20,792 and 8,352.31

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Solution

The fourth proportional to 15,066.55, 20,792 and 8,352.31 is: 11,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,066.55 : 20,792 = 8,352.31 : x
  2. Step 2: Convert to fraction form
    15,066.55/20,792 = 8,352.31/x
  3. Step 3: Cross multiply
    15,066.55x = 20,792 × 8,352.31
  4. Step 4: Simplify right side
    15,066.55x = 173,661,229.52
  5. Step 5: Solve for x
    x = 173,661,229.52/15,066.55
  6. Step 6: Final answer
    x = 11,526.28

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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.