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Finding the Fourth Proportional to 73,069.93, 100,836.34 and 39,535.93

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Solution

The fourth proportional to 73,069.93, 100,836.34 and 39,535.93 is: 54,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,069.93 : 100,836.34 = 39,535.93 : x
  2. Step 2: Convert to fraction form
    73,069.93/100,836.34 = 39,535.93/x
  3. Step 3: Cross multiply
    73,069.93x = 100,836.34 × 39,535.93
  4. Step 4: Simplify right side
    73,069.93x = 3,986,658,479.70
  5. Step 5: Solve for x
    x = 3,986,658,479.70/73,069.93
  6. Step 6: Final answer
    x = 54,559.49

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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.