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Finding the Fourth Proportional to 68,763.44, 94,890.84 and 38,955.44

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Solution

The fourth proportional to 68,763.44, 94,890.84 and 38,955.44 is: 53,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,763.44 : 94,890.84 = 38,955.44 : x
  2. Step 2: Convert to fraction form
    68,763.44/94,890.84 = 38,955.44/x
  3. Step 3: Cross multiply
    68,763.44x = 94,890.84 × 38,955.44
  4. Step 4: Simplify right side
    68,763.44x = 3,696,514,424.17
  5. Step 5: Solve for x
    x = 3,696,514,424.17/68,763.44
  6. Step 6: Final answer
    x = 53,756.97

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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.