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Finding the Fourth Proportional to 69,431.05, 95,815.20 and 37,600.08

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Solution

The fourth proportional to 69,431.05, 95,815.20 and 37,600.08 is: 51,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,431.05 : 95,815.20 = 37,600.08 : x
  2. Step 2: Convert to fraction form
    69,431.05/95,815.20 = 37,600.08/x
  3. Step 3: Cross multiply
    69,431.05x = 95,815.20 × 37,600.08
  4. Step 4: Simplify right side
    69,431.05x = 3,602,659,185.22
  5. Step 5: Solve for x
    x = 3,602,659,185.22/69,431.05
  6. Step 6: Final answer
    x = 51,888.30

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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.