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Finding the Fourth Proportional to 48,438.48, 72,652.24 and 13,383.12

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Solution

The fourth proportional to 48,438.48, 72,652.24 and 13,383.12 is: 20,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,438.48 : 72,652.24 = 13,383.12 : x
  2. Step 2: Convert to fraction form
    48,438.48/72,652.24 = 13,383.12/x
  3. Step 3: Cross multiply
    48,438.48x = 72,652.24 × 13,383.12
  4. Step 4: Simplify right side
    48,438.48x = 972,313,646.19
  5. Step 5: Solve for x
    x = 972,313,646.19/48,438.48
  6. Step 6: Final answer
    x = 20,073.17

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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.