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Finding the Fourth Proportional to 32,443.60, 48,631.80 and 17,621.20

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Solution

The fourth proportional to 32,443.60, 48,631.80 and 17,621.20 is: 26,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,443.60 : 48,631.80 = 17,621.20 : x
  2. Step 2: Convert to fraction form
    32,443.60/48,631.80 = 17,621.20/x
  3. Step 3: Cross multiply
    32,443.60x = 48,631.80 × 17,621.20
  4. Step 4: Simplify right side
    32,443.60x = 856,950,674.16
  5. Step 5: Solve for x
    x = 856,950,674.16/32,443.60
  6. Step 6: Final answer
    x = 26,413.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.