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Finding the Fourth Proportional to 69,713.81, 104,555.01 and 19,792.88

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Solution

The fourth proportional to 69,713.81, 104,555.01 and 19,792.88 is: 29,684.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,713.81 : 104,555.01 = 19,792.88 : x
  2. Step 2: Convert to fraction form
    69,713.81/104,555.01 = 19,792.88/x
  3. Step 3: Cross multiply
    69,713.81x = 104,555.01 × 19,792.88
  4. Step 4: Simplify right side
    69,713.81x = 2,069,444,766.33
  5. Step 5: Solve for x
    x = 2,069,444,766.33/69,713.81
  6. Step 6: Final answer
    x = 29,684.86

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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.