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Finding the Fourth Proportional to 65,363.63, 98,061.75 and 18,616.51

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Solution

The fourth proportional to 65,363.63, 98,061.75 and 18,616.51 is: 27,929.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,363.63 : 98,061.75 = 18,616.51 : x
  2. Step 2: Convert to fraction form
    65,363.63/98,061.75 = 18,616.51/x
  3. Step 3: Cross multiply
    65,363.63x = 98,061.75 × 18,616.51
  4. Step 4: Simplify right side
    65,363.63x = 1,825,567,304.34
  5. Step 5: Solve for x
    x = 1,825,567,304.34/65,363.63
  6. Step 6: Final answer
    x = 27,929.40

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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.