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Finding the Fourth Proportional to 79,413.80, 109,596.80 and 52,509.65

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Solution

The fourth proportional to 79,413.80, 109,596.80 and 52,509.65 is: 72,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,413.80 : 109,596.80 = 52,509.65 : x
  2. Step 2: Convert to fraction form
    79,413.80/109,596.80 = 52,509.65/x
  3. Step 3: Cross multiply
    79,413.80x = 109,596.80 × 52,509.65
  4. Step 4: Simplify right side
    79,413.80x = 5,754,889,346.57
  5. Step 5: Solve for x
    x = 5,754,889,346.57/79,413.80
  6. Step 6: Final answer
    x = 72,467.12

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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.