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Finding the Fourth Proportional to 64,575.90, 96,848.43 and 27,136.68

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Solution

The fourth proportional to 64,575.90, 96,848.43 and 27,136.68 is: 40,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,575.90 : 96,848.43 = 27,136.68 : x
  2. Step 2: Convert to fraction form
    64,575.90/96,848.43 = 27,136.68/x
  3. Step 3: Cross multiply
    64,575.90x = 96,848.43 × 27,136.68
  4. Step 4: Simplify right side
    64,575.90x = 2,628,144,853.41
  5. Step 5: Solve for x
    x = 2,628,144,853.41/64,575.90
  6. Step 6: Final answer
    x = 40,698.54

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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.