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Finding the Fourth Proportional to 71,999.25, 107,987.93 and 27,646.89

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Solution

The fourth proportional to 71,999.25, 107,987.93 and 27,646.89 is: 41,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,999.25 : 107,987.93 = 27,646.89 : x
  2. Step 2: Convert to fraction form
    71,999.25/107,987.93 = 27,646.89/x
  3. Step 3: Cross multiply
    71,999.25x = 107,987.93 × 27,646.89
  4. Step 4: Simplify right side
    71,999.25x = 2,985,530,283.80
  5. Step 5: Solve for x
    x = 2,985,530,283.80/71,999.25
  6. Step 6: Final answer
    x = 41,466.13

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1.5x scale

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.