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Finding the Fourth Proportional to 43,987.44, 65,980.20 and 10,707.68

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Solution

The fourth proportional to 43,987.44, 65,980.20 and 10,707.68 is: 16,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.44 : 65,980.20 = 10,707.68 : x
  2. Step 2: Convert to fraction form
    43,987.44/65,980.20 = 10,707.68/x
  3. Step 3: Cross multiply
    43,987.44x = 65,980.20 × 10,707.68
  4. Step 4: Simplify right side
    43,987.44x = 706,494,867.94
  5. Step 5: Solve for x
    x = 706,494,867.94/43,987.44
  6. Step 6: Final answer
    x = 16,061.29

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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.