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Finding the Fourth Proportional to 48,943.96, 73,420.78 and 15,655.66

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Solution

The fourth proportional to 48,943.96, 73,420.78 and 15,655.66 is: 23,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,943.96 : 73,420.78 = 15,655.66 : x
  2. Step 2: Convert to fraction form
    48,943.96/73,420.78 = 15,655.66/x
  3. Step 3: Cross multiply
    48,943.96x = 73,420.78 × 15,655.66
  4. Step 4: Simplify right side
    48,943.96x = 1,149,450,768.61
  5. Step 5: Solve for x
    x = 1,149,450,768.61/48,943.96
  6. Step 6: Final answer
    x = 23,485.04

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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.