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Finding the Fourth Proportional to 63,273.12, 87,308.92 and 34,979.28

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Solution

The fourth proportional to 63,273.12, 87,308.92 and 34,979.28 is: 48,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,273.12 : 87,308.92 = 34,979.28 : x
  2. Step 2: Convert to fraction form
    63,273.12/87,308.92 = 34,979.28/x
  3. Step 3: Cross multiply
    63,273.12x = 87,308.92 × 34,979.28
  4. Step 4: Simplify right side
    63,273.12x = 3,054,003,159.18
  5. Step 5: Solve for x
    x = 3,054,003,159.18/63,273.12
  6. Step 6: Final answer
    x = 48,266.99

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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.