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Finding the Fourth Proportional to 63,987.48, 96,064.56 and 43,021.44

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Solution

The fourth proportional to 63,987.48, 96,064.56 and 43,021.44 is: 64,588.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,987.48 : 96,064.56 = 43,021.44 : x
  2. Step 2: Convert to fraction form
    63,987.48/96,064.56 = 43,021.44/x
  3. Step 3: Cross multiply
    63,987.48x = 96,064.56 × 43,021.44
  4. Step 4: Simplify right side
    63,987.48x = 4,132,835,704.17
  5. Step 5: Solve for x
    x = 4,132,835,704.17/63,987.48
  6. Step 6: Final answer
    x = 64,588.19

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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.