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Finding the Fourth Proportional to 43,681.40, 65,476.66 and 29,642.68

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Solution

The fourth proportional to 43,681.40, 65,476.66 and 29,642.68 is: 44,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,681.40 : 65,476.66 = 29,642.68 : x
  2. Step 2: Convert to fraction form
    43,681.40/65,476.66 = 29,642.68/x
  3. Step 3: Cross multiply
    43,681.40x = 65,476.66 × 29,642.68
  4. Step 4: Simplify right side
    43,681.40x = 1,940,903,531.64
  5. Step 5: Solve for x
    x = 1,940,903,531.64/43,681.40
  6. Step 6: Final answer
    x = 44,433.18

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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.