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Finding the Fourth Proportional to 86,413.96, 129,623.70 and 27,250.16

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Solution

The fourth proportional to 86,413.96, 129,623.70 and 27,250.16 is: 40,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,413.96 : 129,623.70 = 27,250.16 : x
  2. Step 2: Convert to fraction form
    86,413.96/129,623.70 = 27,250.16/x
  3. Step 3: Cross multiply
    86,413.96x = 129,623.70 × 27,250.16
  4. Step 4: Simplify right side
    86,413.96x = 3,532,266,564.79
  5. Step 5: Solve for x
    x = 3,532,266,564.79/86,413.96
  6. Step 6: Final answer
    x = 40,876.11

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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.