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Finding the Fourth Proportional to 15,048.50, 20,767.11 and 8,334.25

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Solution

The fourth proportional to 15,048.50, 20,767.11 and 8,334.25 is: 11,501.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.50 : 20,767.11 = 8,334.25 : x
  2. Step 2: Convert to fraction form
    15,048.50/20,767.11 = 8,334.25/x
  3. Step 3: Cross multiply
    15,048.50x = 20,767.11 × 8,334.25
  4. Step 4: Simplify right side
    15,048.50x = 173,078,234.60
  5. Step 5: Solve for x
    x = 173,078,234.60/15,048.50
  6. Step 6: Final answer
    x = 11,501.36

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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.