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Finding the Fourth Proportional to 19,266.24, 28,770.72 and 18,282.24

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Solution

The fourth proportional to 19,266.24, 28,770.72 and 18,282.24 is: 27,301.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.24 : 28,770.72 = 18,282.24 : x
  2. Step 2: Convert to fraction form
    19,266.24/28,770.72 = 18,282.24/x
  3. Step 3: Cross multiply
    19,266.24x = 28,770.72 × 18,282.24
  4. Step 4: Simplify right side
    19,266.24x = 525,993,208.01
  5. Step 5: Solve for x
    x = 525,993,208.01/19,266.24
  6. Step 6: Final answer
    x = 27,301.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.