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Finding the Fourth Proportional to 15,796.79, 21,799.53 and 9,082.09

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Solution

The fourth proportional to 15,796.79, 21,799.53 and 9,082.09 is: 12,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.79 : 21,799.53 = 9,082.09 : x
  2. Step 2: Convert to fraction form
    15,796.79/21,799.53 = 9,082.09/x
  3. Step 3: Cross multiply
    15,796.79x = 21,799.53 × 9,082.09
  4. Step 4: Simplify right side
    15,796.79x = 197,985,320.67
  5. Step 5: Solve for x
    x = 197,985,320.67/15,796.79
  6. Step 6: Final answer
    x = 12,533.26

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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.