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Finding the Fourth Proportional to 8,707.74, 12,010.53 and 5,352.44

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Solution

The fourth proportional to 8,707.74, 12,010.53 and 5,352.44 is: 7,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.74 : 12,010.53 = 5,352.44 : x
  2. Step 2: Convert to fraction form
    8,707.74/12,010.53 = 5,352.44/x
  3. Step 3: Cross multiply
    8,707.74x = 12,010.53 × 5,352.44
  4. Step 4: Simplify right side
    8,707.74x = 64,285,604.88
  5. Step 5: Solve for x
    x = 64,285,604.88/8,707.74
  6. Step 6: Final answer
    x = 7,382.59

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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.