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Finding the Fourth Proportional to 69,828.80, 96,364.64 and 37,998.56

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Solution

The fourth proportional to 69,828.80, 96,364.64 and 37,998.56 is: 52,438.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,828.80 : 96,364.64 = 37,998.56 : x
  2. Step 2: Convert to fraction form
    69,828.80/96,364.64 = 37,998.56/x
  3. Step 3: Cross multiply
    69,828.80x = 96,364.64 × 37,998.56
  4. Step 4: Simplify right side
    69,828.80x = 3,661,717,554.92
  5. Step 5: Solve for x
    x = 3,661,717,554.92/69,828.80
  6. Step 6: Final answer
    x = 52,438.50

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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.