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Finding the Fourth Proportional to 69,643.47, 96,106.47 and 37,812.09

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Solution

The fourth proportional to 69,643.47, 96,106.47 and 37,812.09 is: 52,179.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,643.47 : 96,106.47 = 37,812.09 : x
  2. Step 2: Convert to fraction form
    69,643.47/96,106.47 = 37,812.09/x
  3. Step 3: Cross multiply
    69,643.47x = 96,106.47 × 37,812.09
  4. Step 4: Simplify right side
    69,643.47x = 3,633,986,493.22
  5. Step 5: Solve for x
    x = 3,633,986,493.22/69,643.47
  6. Step 6: Final answer
    x = 52,179.86

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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.