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Finding the Fourth Proportional to 47,991.60, 71,987.40 and 26,996.40

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Solution

The fourth proportional to 47,991.60, 71,987.40 and 26,996.40 is: 40,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,991.60 : 71,987.40 = 26,996.40 : x
  2. Step 2: Convert to fraction form
    47,991.60/71,987.40 = 26,996.40/x
  3. Step 3: Cross multiply
    47,991.60x = 71,987.40 × 26,996.40
  4. Step 4: Simplify right side
    47,991.60x = 1,943,400,645.36
  5. Step 5: Solve for x
    x = 1,943,400,645.36/47,991.60
  6. Step 6: Final answer
    x = 40,494.60

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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.