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Finding the Fourth Proportional to 68,697.51, 95,287.58 and 66,876.63

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Solution

The fourth proportional to 68,697.51, 95,287.58 and 66,876.63 is: 92,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,697.51 : 95,287.58 = 66,876.63 : x
  2. Step 2: Convert to fraction form
    68,697.51/95,287.58 = 66,876.63/x
  3. Step 3: Cross multiply
    68,697.51x = 95,287.58 × 66,876.63
  4. Step 4: Simplify right side
    68,697.51x = 6,372,512,398.45
  5. Step 5: Solve for x
    x = 6,372,512,398.45/68,697.51
  6. Step 6: Final answer
    x = 92,761.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.