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Finding the Fourth Proportional to 69,816.87, 96,348.26 and 37,985.78

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Solution

The fourth proportional to 69,816.87, 96,348.26 and 37,985.78 is: 52,420.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,816.87 : 96,348.26 = 37,985.78 : x
  2. Step 2: Convert to fraction form
    69,816.87/96,348.26 = 37,985.78/x
  3. Step 3: Cross multiply
    69,816.87x = 96,348.26 × 37,985.78
  4. Step 4: Simplify right side
    69,816.87x = 3,659,864,143.58
  5. Step 5: Solve for x
    x = 3,659,864,143.58/69,816.87
  6. Step 6: Final answer
    x = 52,420.91

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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.