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Finding the Fourth Proportional to 18,525.80, 25,563.22 and 10,567.55

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Solution

The fourth proportional to 18,525.80, 25,563.22 and 10,567.55 is: 14,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.80 : 25,563.22 = 10,567.55 : x
  2. Step 2: Convert to fraction form
    18,525.80/25,563.22 = 10,567.55/x
  3. Step 3: Cross multiply
    18,525.80x = 25,563.22 × 10,567.55
  4. Step 4: Simplify right side
    18,525.80x = 270,140,424.86
  5. Step 5: Solve for x
    x = 270,140,424.86/18,525.80
  6. Step 6: Final answer
    x = 14,581.85

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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.