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Finding the Fourth Proportional to 12,362.70, 18,523.78 and 5,241.25

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Solution

The fourth proportional to 12,362.70, 18,523.78 and 5,241.25 is: 7,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,362.70 : 18,523.78 = 5,241.25 : x
  2. Step 2: Convert to fraction form
    12,362.70/18,523.78 = 5,241.25/x
  3. Step 3: Cross multiply
    12,362.70x = 18,523.78 × 5,241.25
  4. Step 4: Simplify right side
    12,362.70x = 97,087,813.91
  5. Step 5: Solve for x
    x = 97,087,813.91/12,362.70
  6. Step 6: Final answer
    x = 7,853.28

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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.