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Finding the Fourth Proportional to 67,978.08, 93,808.44 and 37,763.28

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Solution

The fourth proportional to 67,978.08, 93,808.44 and 37,763.28 is: 52,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,978.08 : 93,808.44 = 37,763.28 : x
  2. Step 2: Convert to fraction form
    67,978.08/93,808.44 = 37,763.28/x
  3. Step 3: Cross multiply
    67,978.08x = 93,808.44 × 37,763.28
  4. Step 4: Simplify right side
    67,978.08x = 3,542,514,386.08
  5. Step 5: Solve for x
    x = 3,542,514,386.08/67,978.08
  6. Step 6: Final answer
    x = 52,112.60

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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.