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Finding the Fourth Proportional to 65,479.46, 98,219.86 and 35,881.18

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Solution

The fourth proportional to 65,479.46, 98,219.86 and 35,881.18 is: 53,822.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,479.46 : 98,219.86 = 35,881.18 : x
  2. Step 2: Convert to fraction form
    65,479.46/98,219.86 = 35,881.18/x
  3. Step 3: Cross multiply
    65,479.46x = 98,219.86 × 35,881.18
  4. Step 4: Simplify right side
    65,479.46x = 3,524,244,140.98
  5. Step 5: Solve for x
    x = 3,524,244,140.98/65,479.46
  6. Step 6: Final answer
    x = 53,822.14

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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.