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Finding the Fourth Proportional to 48,703.55, 73,058.15 and 13,645.94

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Solution

The fourth proportional to 48,703.55, 73,058.15 and 13,645.94 is: 20,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,703.55 : 73,058.15 = 13,645.94 : x
  2. Step 2: Convert to fraction form
    48,703.55/73,058.15 = 13,645.94/x
  3. Step 3: Cross multiply
    48,703.55x = 73,058.15 × 13,645.94
  4. Step 4: Simplify right side
    48,703.55x = 996,946,800.24
  5. Step 5: Solve for x
    x = 996,946,800.24/48,703.55
  6. Step 6: Final answer
    x = 20,469.70

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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.