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Finding the Fourth Proportional to 48,208.80, 72,318.60 and 14,928.60

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Solution

The fourth proportional to 48,208.80, 72,318.60 and 14,928.60 is: 22,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,208.80 : 72,318.60 = 14,928.60 : x
  2. Step 2: Convert to fraction form
    48,208.80/72,318.60 = 14,928.60/x
  3. Step 3: Cross multiply
    48,208.80x = 72,318.60 × 14,928.60
  4. Step 4: Simplify right side
    48,208.80x = 1,079,615,451.96
  5. Step 5: Solve for x
    x = 1,079,615,451.96/48,208.80
  6. Step 6: Final answer
    x = 22,394.57

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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.