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Finding the Fourth Proportional to 69,609.84, 96,061.64 and 37,778.75

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Solution

The fourth proportional to 69,609.84, 96,061.64 and 37,778.75 is: 52,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,609.84 : 96,061.64 = 37,778.75 : x
  2. Step 2: Convert to fraction form
    69,609.84/96,061.64 = 37,778.75/x
  3. Step 3: Cross multiply
    69,609.84x = 96,061.64 × 37,778.75
  4. Step 4: Simplify right side
    69,609.84x = 3,629,088,012.95
  5. Step 5: Solve for x
    x = 3,629,088,012.95/69,609.84
  6. Step 6: Final answer
    x = 52,134.70

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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.