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Finding the Fourth Proportional to 8,707.52, 13,061.10 and 3,512

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Solution

The fourth proportional to 8,707.52, 13,061.10 and 3,512 is: 5,267.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.52 : 13,061.10 = 3,512 : x
  2. Step 2: Convert to fraction form
    8,707.52/13,061.10 = 3,512/x
  3. Step 3: Cross multiply
    8,707.52x = 13,061.10 × 3,512
  4. Step 4: Simplify right side
    8,707.52x = 45,870,583.20
  5. Step 5: Solve for x
    x = 45,870,583.20/8,707.52
  6. Step 6: Final answer
    x = 5,267.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.