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Finding the Fourth Proportional to 71,413.70, 98,554.28 and 39,583.13

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Solution

The fourth proportional to 71,413.70, 98,554.28 and 39,583.13 is: 54,626.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,413.70 : 98,554.28 = 39,583.13 : x
  2. Step 2: Convert to fraction form
    71,413.70/98,554.28 = 39,583.13/x
  3. Step 3: Cross multiply
    71,413.70x = 98,554.28 × 39,583.13
  4. Step 4: Simplify right side
    71,413.70x = 3,901,086,186.61
  5. Step 5: Solve for x
    x = 3,901,086,186.61/71,413.70
  6. Step 6: Final answer
    x = 54,626.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.