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Finding the Fourth Proportional to 86,585.48, 129,865.23 and 27,413.48

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Solution

The fourth proportional to 86,585.48, 129,865.23 and 27,413.48 is: 41,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585.48 : 129,865.23 = 27,413.48 : x
  2. Step 2: Convert to fraction form
    86,585.48/129,865.23 = 27,413.48/x
  3. Step 3: Cross multiply
    86,585.48x = 129,865.23 × 27,413.48
  4. Step 4: Simplify right side
    86,585.48x = 3,560,057,885.30
  5. Step 5: Solve for x
    x = 3,560,057,885.30/86,585.48
  6. Step 6: Final answer
    x = 41,116.11

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1.5x scale

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.