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Finding the Fourth Proportional to 69,728.90, 96,226.64 and 37,897.80

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Solution

The fourth proportional to 69,728.90, 96,226.64 and 37,897.80 is: 52,299.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.90 : 96,226.64 = 37,897.80 : x
  2. Step 2: Convert to fraction form
    69,728.90/96,226.64 = 37,897.80/x
  3. Step 3: Cross multiply
    69,728.90x = 96,226.64 × 37,897.80
  4. Step 4: Simplify right side
    69,728.90x = 3,646,777,767.90
  5. Step 5: Solve for x
    x = 3,646,777,767.90/69,728.90
  6. Step 6: Final answer
    x = 52,299.38

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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.