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Finding the Fourth Proportional to 51,993.30, 71,750.52 and 28,119.99

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Solution

The fourth proportional to 51,993.30, 71,750.52 and 28,119.99 is: 38,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,993.30 : 71,750.52 = 28,119.99 : x
  2. Step 2: Convert to fraction form
    51,993.30/71,750.52 = 28,119.99/x
  3. Step 3: Cross multiply
    51,993.30x = 71,750.52 × 28,119.99
  4. Step 4: Simplify right side
    51,993.30x = 2,017,623,904.89
  5. Step 5: Solve for x
    x = 2,017,623,904.89/51,993.30
  6. Step 6: Final answer
    x = 38,805.46

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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.