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Finding the Fourth Proportional to 8,736.75, 12,057.20 and 5,010.99

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Solution

The fourth proportional to 8,736.75, 12,057.20 and 5,010.99 is: 6,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.75 : 12,057.20 = 5,010.99 : x
  2. Step 2: Convert to fraction form
    8,736.75/12,057.20 = 5,010.99/x
  3. Step 3: Cross multiply
    8,736.75x = 12,057.20 × 5,010.99
  4. Step 4: Simplify right side
    8,736.75x = 60,418,483.57
  5. Step 5: Solve for x
    x = 60,418,483.57/8,736.75
  6. Step 6: Final answer
    x = 6,915.44

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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.