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Finding the Fourth Proportional to 48,697.79, 73,059.63 and 15,418.53

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Solution

The fourth proportional to 48,697.79, 73,059.63 and 15,418.53 is: 23,131.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,697.79 : 73,059.63 = 15,418.53 : x
  2. Step 2: Convert to fraction form
    48,697.79/73,059.63 = 15,418.53/x
  3. Step 3: Cross multiply
    48,697.79x = 73,059.63 × 15,418.53
  4. Step 4: Simplify right side
    48,697.79x = 1,126,472,096.94
  5. Step 5: Solve for x
    x = 1,126,472,096.94/48,697.79
  6. Step 6: Final answer
    x = 23,131.90

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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.