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Finding the Fourth Proportional to 19,253.82, 28,869.53 and 9,383.16

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Solution

The fourth proportional to 19,253.82, 28,869.53 and 9,383.16 is: 14,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,253.82 : 28,869.53 = 9,383.16 : x
  2. Step 2: Convert to fraction form
    19,253.82/28,869.53 = 9,383.16/x
  3. Step 3: Cross multiply
    19,253.82x = 28,869.53 × 9,383.16
  4. Step 4: Simplify right side
    19,253.82x = 270,887,372.20
  5. Step 5: Solve for x
    x = 270,887,372.20/19,253.82
  6. Step 6: Final answer
    x = 14,069.28

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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.