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Finding the Fourth Proportional to 65,821.80, 98,703.90 and 26,365.80

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Solution

The fourth proportional to 65,821.80, 98,703.90 and 26,365.80 is: 39,537.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,821.80 : 98,703.90 = 26,365.80 : x
  2. Step 2: Convert to fraction form
    65,821.80/98,703.90 = 26,365.80/x
  3. Step 3: Cross multiply
    65,821.80x = 98,703.90 × 26,365.80
  4. Step 4: Simplify right side
    65,821.80x = 2,602,407,286.62
  5. Step 5: Solve for x
    x = 2,602,407,286.62/65,821.80
  6. Step 6: Final answer
    x = 39,537.16

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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.