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Finding the Fourth Proportional to 8,674.08, 13,013.54 and 2,831.04

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Solution

The fourth proportional to 8,674.08, 13,013.54 and 2,831.04 is: 4,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.08 : 13,013.54 = 2,831.04 : x
  2. Step 2: Convert to fraction form
    8,674.08/13,013.54 = 2,831.04/x
  3. Step 3: Cross multiply
    8,674.08x = 13,013.54 × 2,831.04
  4. Step 4: Simplify right side
    8,674.08x = 36,841,852.28
  5. Step 5: Solve for x
    x = 36,841,852.28/8,674.08
  6. Step 6: Final answer
    x = 4,247.35

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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.