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Finding the Fourth Proportional to 52,859.88, 72,944.10 and 28,982.12

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Solution

The fourth proportional to 52,859.88, 72,944.10 and 28,982.12 is: 39,993.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,859.88 : 72,944.10 = 28,982.12 : x
  2. Step 2: Convert to fraction form
    52,859.88/72,944.10 = 28,982.12/x
  3. Step 3: Cross multiply
    52,859.88x = 72,944.10 × 28,982.12
  4. Step 4: Simplify right side
    52,859.88x = 2,114,074,659.49
  5. Step 5: Solve for x
    x = 2,114,074,659.49/52,859.88
  6. Step 6: Final answer
    x = 39,993.94

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1.5x scale

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.