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Finding the Fourth Proportional to 43,593.71, 65,415.79 and 18,290.95

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Solution

The fourth proportional to 43,593.71, 65,415.79 and 18,290.95 is: 27,447.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,593.71 : 65,415.79 = 18,290.95 : x
  2. Step 2: Convert to fraction form
    43,593.71/65,415.79 = 18,290.95/x
  3. Step 3: Cross multiply
    43,593.71x = 65,415.79 × 18,290.95
  4. Step 4: Simplify right side
    43,593.71x = 1,196,516,852.65
  5. Step 5: Solve for x
    x = 1,196,516,852.65/43,593.71
  6. Step 6: Final answer
    x = 27,447.01

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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.