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Finding the Fourth Proportional to 68,714.91, 94,824.59 and 40,040.91

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Solution

The fourth proportional to 68,714.91, 94,824.59 and 40,040.91 is: 55,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,714.91 : 94,824.59 = 40,040.91 : x
  2. Step 2: Convert to fraction form
    68,714.91/94,824.59 = 40,040.91/x
  3. Step 3: Cross multiply
    68,714.91x = 94,824.59 × 40,040.91
  4. Step 4: Simplify right side
    68,714.91x = 3,796,862,673.77
  5. Step 5: Solve for x
    x = 3,796,862,673.77/68,714.91
  6. Step 6: Final answer
    x = 55,255.30

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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.