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Finding the Fourth Proportional to 52,993.70, 73,131.18 and 30,332.78

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Solution

The fourth proportional to 52,993.70, 73,131.18 and 30,332.78 is: 41,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,993.70 : 73,131.18 = 30,332.78 : x
  2. Step 2: Convert to fraction form
    52,993.70/73,131.18 = 30,332.78/x
  3. Step 3: Cross multiply
    52,993.70x = 73,131.18 × 30,332.78
  4. Step 4: Simplify right side
    52,993.70x = 2,218,271,994.08
  5. Step 5: Solve for x
    x = 2,218,271,994.08/52,993.70
  6. Step 6: Final answer
    x = 41,859.16

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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.