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Finding the Fourth Proportional to 69,852.78, 96,393.85 and 38,021.60

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Solution

The fourth proportional to 69,852.78, 96,393.85 and 38,021.60 is: 52,468.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,852.78 : 96,393.85 = 38,021.60 : x
  2. Step 2: Convert to fraction form
    69,852.78/96,393.85 = 38,021.60/x
  3. Step 3: Cross multiply
    69,852.78x = 96,393.85 × 38,021.60
  4. Step 4: Simplify right side
    69,852.78x = 3,665,048,553.09
  5. Step 5: Solve for x
    x = 3,665,048,553.09/69,852.78
  6. Step 6: Final answer
    x = 52,468.18

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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.