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Finding the Fourth Proportional to 48,980.88, 73,413 and 34,109.28

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Solution

The fourth proportional to 48,980.88, 73,413 and 34,109.28 is: 51,123.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,980.88 : 73,413 = 34,109.28 : x
  2. Step 2: Convert to fraction form
    48,980.88/73,413 = 34,109.28/x
  3. Step 3: Cross multiply
    48,980.88x = 73,413 × 34,109.28
  4. Step 4: Simplify right side
    48,980.88x = 2,504,064,572.64
  5. Step 5: Solve for x
    x = 2,504,064,572.64/48,980.88
  6. Step 6: Final answer
    x = 51,123.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.