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Finding the Fourth Proportional to 18,509.46, 25,542.81 and 10,551.83

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Solution

The fourth proportional to 18,509.46, 25,542.81 and 10,551.83 is: 14,561.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.46 : 25,542.81 = 10,551.83 : x
  2. Step 2: Convert to fraction form
    18,509.46/25,542.81 = 10,551.83/x
  3. Step 3: Cross multiply
    18,509.46x = 25,542.81 × 10,551.83
  4. Step 4: Simplify right side
    18,509.46x = 269,523,261.13
  5. Step 5: Solve for x
    x = 269,523,261.13/18,509.46
  6. Step 6: Final answer
    x = 14,561.38

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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.