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Finding the Fourth Proportional to 15,048.84, 20,766.51 and 8,334.09

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Solution

The fourth proportional to 15,048.84, 20,766.51 and 8,334.09 is: 11,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.84 : 20,766.51 = 8,334.09 : x
  2. Step 2: Convert to fraction form
    15,048.84/20,766.51 = 8,334.09/x
  3. Step 3: Cross multiply
    15,048.84x = 20,766.51 × 8,334.09
  4. Step 4: Simplify right side
    15,048.84x = 173,069,963.33
  5. Step 5: Solve for x
    x = 173,069,963.33/15,048.84
  6. Step 6: Final answer
    x = 11,500.55

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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.