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Finding the Fourth Proportional to 28,799.48, 43,101.68 and 17,713.19

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Solution

The fourth proportional to 28,799.48, 43,101.68 and 17,713.19 is: 26,509.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,799.48 : 43,101.68 = 17,713.19 : x
  2. Step 2: Convert to fraction form
    28,799.48/43,101.68 = 17,713.19/x
  3. Step 3: Cross multiply
    28,799.48x = 43,101.68 × 17,713.19
  4. Step 4: Simplify right side
    28,799.48x = 763,467,943.08
  5. Step 5: Solve for x
    x = 763,467,943.08/28,799.48
  6. Step 6: Final answer
    x = 26,509.79

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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.