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Finding the Fourth Proportional to 69,994.20, 104,991.76 and 30,541.64

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Solution

The fourth proportional to 69,994.20, 104,991.76 and 30,541.64 is: 45,812.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,994.20 : 104,991.76 = 30,541.64 : x
  2. Step 2: Convert to fraction form
    69,994.20/104,991.76 = 30,541.64/x
  3. Step 3: Cross multiply
    69,994.20x = 104,991.76 × 30,541.64
  4. Step 4: Simplify right side
    69,994.20x = 3,206,620,536.89
  5. Step 5: Solve for x
    x = 3,206,620,536.89/69,994.20
  6. Step 6: Final answer
    x = 45,812.66

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1.5x scale

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.