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Finding the Fourth Proportional to 43,987.39, 65,980.44 and 10,707.53

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Solution

The fourth proportional to 43,987.39, 65,980.44 and 10,707.53 is: 16,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.39 : 65,980.44 = 10,707.53 : x
  2. Step 2: Convert to fraction form
    43,987.39/65,980.44 = 10,707.53/x
  3. Step 3: Cross multiply
    43,987.39x = 65,980.44 × 10,707.53
  4. Step 4: Simplify right side
    43,987.39x = 706,487,210.81
  5. Step 5: Solve for x
    x = 706,487,210.81/43,987.39
  6. Step 6: Final answer
    x = 16,061.13

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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.