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Finding the Fourth Proportional to 68,682.25, 94,776.31 and 41,821.77

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Solution

The fourth proportional to 68,682.25, 94,776.31 and 41,821.77 is: 57,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,682.25 : 94,776.31 = 41,821.77 : x
  2. Step 2: Convert to fraction form
    68,682.25/94,776.31 = 41,821.77/x
  3. Step 3: Cross multiply
    68,682.25x = 94,776.31 × 41,821.77
  4. Step 4: Simplify right side
    68,682.25x = 3,963,713,038.27
  5. Step 5: Solve for x
    x = 3,963,713,038.27/68,682.25
  6. Step 6: Final answer
    x = 57,710.88

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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.