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Finding the Fourth Proportional to 13,604.79, 20,363.44 and 7,022.01

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Solution

The fourth proportional to 13,604.79, 20,363.44 and 7,022.01 is: 10,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.79 : 20,363.44 = 7,022.01 : x
  2. Step 2: Convert to fraction form
    13,604.79/20,363.44 = 7,022.01/x
  3. Step 3: Cross multiply
    13,604.79x = 20,363.44 × 7,022.01
  4. Step 4: Simplify right side
    13,604.79x = 142,992,279.31
  5. Step 5: Solve for x
    x = 142,992,279.31/13,604.79
  6. Step 6: Final answer
    x = 10,510.44

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1.5x scale

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.