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Finding the Fourth Proportional to 52,973.40, 79,434.42 and 30,793.20

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Solution

The fourth proportional to 52,973.40, 79,434.42 and 30,793.20 is: 46,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,973.40 : 79,434.42 = 30,793.20 : x
  2. Step 2: Convert to fraction form
    52,973.40/79,434.42 = 30,793.20/x
  3. Step 3: Cross multiply
    52,973.40x = 79,434.42 × 30,793.20
  4. Step 4: Simplify right side
    52,973.40x = 2,446,039,981.94
  5. Step 5: Solve for x
    x = 2,446,039,981.94/52,973.40
  6. Step 6: Final answer
    x = 46,174.87

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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.