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Finding the Fourth Proportional to 69,084.94, 103,627.39 and 31,089.80

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Solution

The fourth proportional to 69,084.94, 103,627.39 and 31,089.80 is: 46,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,084.94 : 103,627.39 = 31,089.80 : x
  2. Step 2: Convert to fraction form
    69,084.94/103,627.39 = 31,089.80/x
  3. Step 3: Cross multiply
    69,084.94x = 103,627.39 × 31,089.80
  4. Step 4: Simplify right side
    69,084.94x = 3,221,754,734.09
  5. Step 5: Solve for x
    x = 3,221,754,734.09/69,084.94
  6. Step 6: Final answer
    x = 46,634.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.