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Finding the Fourth Proportional to 68,656.32, 94,721.76 and 41,790.24

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Solution

The fourth proportional to 68,656.32, 94,721.76 and 41,790.24 is: 57,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,656.32 : 94,721.76 = 41,790.24 : x
  2. Step 2: Convert to fraction form
    68,656.32/94,721.76 = 41,790.24/x
  3. Step 3: Cross multiply
    68,656.32x = 94,721.76 × 41,790.24
  4. Step 4: Simplify right side
    68,656.32x = 3,958,445,083.62
  5. Step 5: Solve for x
    x = 3,958,445,083.62/68,656.32
  6. Step 6: Final answer
    x = 57,655.95

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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.