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Finding the Fourth Proportional to 17,820.40, 26,795.40 and 14,969.20

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Solution

The fourth proportional to 17,820.40, 26,795.40 and 14,969.20 is: 22,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.40 : 26,795.40 = 14,969.20 : x
  2. Step 2: Convert to fraction form
    17,820.40/26,795.40 = 14,969.20/x
  3. Step 3: Cross multiply
    17,820.40x = 26,795.40 × 14,969.20
  4. Step 4: Simplify right side
    17,820.40x = 401,105,701.68
  5. Step 5: Solve for x
    x = 401,105,701.68/17,820.40
  6. Step 6: Final answer
    x = 22,508.23

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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.