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Finding the Fourth Proportional to 29,394.56, 40,564.44 and 16,819.28

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Solution

The fourth proportional to 29,394.56, 40,564.44 and 16,819.28 is: 23,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,394.56 : 40,564.44 = 16,819.28 : x
  2. Step 2: Convert to fraction form
    29,394.56/40,564.44 = 16,819.28/x
  3. Step 3: Cross multiply
    29,394.56x = 40,564.44 × 16,819.28
  4. Step 4: Simplify right side
    29,394.56x = 682,264,674.40
  5. Step 5: Solve for x
    x = 682,264,674.40/29,394.56
  6. Step 6: Final answer
    x = 23,210.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.