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Finding the Fourth Proportional to 65,987.15, 98,980.82 and 16,067.25

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Solution

The fourth proportional to 65,987.15, 98,980.82 and 16,067.25 is: 24,100.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,987.15 : 98,980.82 = 16,067.25 : x
  2. Step 2: Convert to fraction form
    65,987.15/98,980.82 = 16,067.25/x
  3. Step 3: Cross multiply
    65,987.15x = 98,980.82 × 16,067.25
  4. Step 4: Simplify right side
    65,987.15x = 1,590,349,499.81
  5. Step 5: Solve for x
    x = 1,590,349,499.81/65,987.15
  6. Step 6: Final answer
    x = 24,100.90

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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.