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Finding the Fourth Proportional to 18,757.94, 25,833.42 and 18,349.70

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Solution

The fourth proportional to 18,757.94, 25,833.42 and 18,349.70 is: 25,271.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,757.94 : 25,833.42 = 18,349.70 : x
  2. Step 2: Convert to fraction form
    18,757.94/25,833.42 = 18,349.70/x
  3. Step 3: Cross multiply
    18,757.94x = 25,833.42 × 18,349.70
  4. Step 4: Simplify right side
    18,757.94x = 474,035,377.81
  5. Step 5: Solve for x
    x = 474,035,377.81/18,757.94
  6. Step 6: Final answer
    x = 25,271.19

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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.