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Finding the Fourth Proportional to 69,330.74, 103,980.92 and 33,776.80

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Solution

The fourth proportional to 69,330.74, 103,980.92 and 33,776.80 is: 50,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,330.74 : 103,980.92 = 33,776.80 : x
  2. Step 2: Convert to fraction form
    69,330.74/103,980.92 = 33,776.80/x
  3. Step 3: Cross multiply
    69,330.74x = 103,980.92 × 33,776.80
  4. Step 4: Simplify right side
    69,330.74x = 3,512,142,309.82
  5. Step 5: Solve for x
    x = 3,512,142,309.82/69,330.74
  6. Step 6: Final answer
    x = 50,657.80

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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.