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Finding the Fourth Proportional to 15,047.92, 22,564.29 and 8,809.81

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Solution

The fourth proportional to 15,047.92, 22,564.29 and 8,809.81 is: 13,210.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.92 : 22,564.29 = 8,809.81 : x
  2. Step 2: Convert to fraction form
    15,047.92/22,564.29 = 8,809.81/x
  3. Step 3: Cross multiply
    15,047.92x = 22,564.29 × 8,809.81
  4. Step 4: Simplify right side
    15,047.92x = 198,787,107.68
  5. Step 5: Solve for x
    x = 198,787,107.68/15,047.92
  6. Step 6: Final answer
    x = 13,210.27

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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.