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Finding the Fourth Proportional to 69,490.30, 95,896.70 and 37,659.20

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Solution

The fourth proportional to 69,490.30, 95,896.70 and 37,659.20 is: 51,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,490.30 : 95,896.70 = 37,659.20 : x
  2. Step 2: Convert to fraction form
    69,490.30/95,896.70 = 37,659.20/x
  3. Step 3: Cross multiply
    69,490.30x = 95,896.70 × 37,659.20
  4. Step 4: Simplify right side
    69,490.30x = 3,611,392,816.34
  5. Step 5: Solve for x
    x = 3,611,392,816.34/69,490.30
  6. Step 6: Final answer
    x = 51,969.74

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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.