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Finding the Fourth Proportional to 18,275.40, 27,413.10 and 16,662.60

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Solution

The fourth proportional to 18,275.40, 27,413.10 and 16,662.60 is: 24,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.40 : 27,413.10 = 16,662.60 : x
  2. Step 2: Convert to fraction form
    18,275.40/27,413.10 = 16,662.60/x
  3. Step 3: Cross multiply
    18,275.40x = 27,413.10 × 16,662.60
  4. Step 4: Simplify right side
    18,275.40x = 456,773,520.06
  5. Step 5: Solve for x
    x = 456,773,520.06/18,275.40
  6. Step 6: Final answer
    x = 24,993.90

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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.