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Finding the Fourth Proportional to 18,563.60, 25,614.96 and 10,604.40

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Solution

The fourth proportional to 18,563.60, 25,614.96 and 10,604.40 is: 14,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,563.60 : 25,614.96 = 10,604.40 : x
  2. Step 2: Convert to fraction form
    18,563.60/25,614.96 = 10,604.40/x
  3. Step 3: Cross multiply
    18,563.60x = 25,614.96 × 10,604.40
  4. Step 4: Simplify right side
    18,563.60x = 271,631,281.82
  5. Step 5: Solve for x
    x = 271,631,281.82/18,563.60
  6. Step 6: Final answer
    x = 14,632.47

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1.5x scale

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.