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Finding the Fourth Proportional to 59,921.72, 82,660.68 and 48,604.40

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Solution

The fourth proportional to 59,921.72, 82,660.68 and 48,604.40 is: 67,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,921.72 : 82,660.68 = 48,604.40 : x
  2. Step 2: Convert to fraction form
    59,921.72/82,660.68 = 48,604.40/x
  3. Step 3: Cross multiply
    59,921.72x = 82,660.68 × 48,604.40
  4. Step 4: Simplify right side
    59,921.72x = 4,017,672,754.99
  5. Step 5: Solve for x
    x = 4,017,672,754.99/59,921.72
  6. Step 6: Final answer
    x = 67,048.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.