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Finding the Fourth Proportional to 65,363.16, 98,061.75 and 18,619.68

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Solution

The fourth proportional to 65,363.16, 98,061.75 and 18,619.68 is: 27,934.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,363.16 : 98,061.75 = 18,619.68 : x
  2. Step 2: Convert to fraction form
    65,363.16/98,061.75 = 18,619.68/x
  3. Step 3: Cross multiply
    65,363.16x = 98,061.75 × 18,619.68
  4. Step 4: Simplify right side
    65,363.16x = 1,825,878,405.24
  5. Step 5: Solve for x
    x = 1,825,878,405.24/65,363.16
  6. Step 6: Final answer
    x = 27,934.37

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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.