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Finding the Fourth Proportional to 39,703.30, 59,553.02 and 14,748.21

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Solution

The fourth proportional to 39,703.30, 59,553.02 and 14,748.21 is: 22,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,703.30 : 59,553.02 = 14,748.21 : x
  2. Step 2: Convert to fraction form
    39,703.30/59,553.02 = 14,748.21/x
  3. Step 3: Cross multiply
    39,703.30x = 59,553.02 × 14,748.21
  4. Step 4: Simplify right side
    39,703.30x = 878,300,481.96
  5. Step 5: Solve for x
    x = 878,300,481.96/39,703.30
  6. Step 6: Final answer
    x = 22,121.60

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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.