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Finding the Fourth Proportional to 67,686.44, 93,410.34 and 37,878.44

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Solution

The fourth proportional to 67,686.44, 93,410.34 and 37,878.44 is: 52,273.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,686.44 : 93,410.34 = 37,878.44 : x
  2. Step 2: Convert to fraction form
    67,686.44/93,410.34 = 37,878.44/x
  3. Step 3: Cross multiply
    67,686.44x = 93,410.34 × 37,878.44
  4. Step 4: Simplify right side
    67,686.44x = 3,538,237,959.07
  5. Step 5: Solve for x
    x = 3,538,237,959.07/67,686.44
  6. Step 6: Final answer
    x = 52,273.96

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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.