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Finding the Fourth Proportional to 69,738.39, 96,239.21 and 37,907.42

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Solution

The fourth proportional to 69,738.39, 96,239.21 and 37,907.42 is: 52,312.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,738.39 : 96,239.21 = 37,907.42 : x
  2. Step 2: Convert to fraction form
    69,738.39/96,239.21 = 37,907.42/x
  3. Step 3: Cross multiply
    69,738.39x = 96,239.21 × 37,907.42
  4. Step 4: Simplify right side
    69,738.39x = 3,648,179,483.21
  5. Step 5: Solve for x
    x = 3,648,179,483.21/69,738.39
  6. Step 6: Final answer
    x = 52,312.36

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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.