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Finding the Fourth Proportional to 69,903.54, 104,874.75 and 38,760.66

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Solution

The fourth proportional to 69,903.54, 104,874.75 and 38,760.66 is: 58,151.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.54 : 104,874.75 = 38,760.66 : x
  2. Step 2: Convert to fraction form
    69,903.54/104,874.75 = 38,760.66/x
  3. Step 3: Cross multiply
    69,903.54x = 104,874.75 × 38,760.66
  4. Step 4: Simplify right side
    69,903.54x = 4,065,014,527.34
  5. Step 5: Solve for x
    x = 4,065,014,527.34/69,903.54
  6. Step 6: Final answer
    x = 58,151.77

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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.