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Finding the Fourth Proportional to 67,974.88, 93,816.48 and 39,295.48

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Solution

The fourth proportional to 67,974.88, 93,816.48 and 39,295.48 is: 54,234.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,974.88 : 93,816.48 = 39,295.48 : x
  2. Step 2: Convert to fraction form
    67,974.88/93,816.48 = 39,295.48/x
  3. Step 3: Cross multiply
    67,974.88x = 93,816.48 × 39,295.48
  4. Step 4: Simplify right side
    67,974.88x = 3,686,563,613.51
  5. Step 5: Solve for x
    x = 3,686,563,613.51/67,974.88
  6. Step 6: Final answer
    x = 54,234.21

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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.