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Finding the Fourth Proportional to 13,793.96, 19,036.10 and 7,825.88

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Solution

The fourth proportional to 13,793.96, 19,036.10 and 7,825.88 is: 10,799.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.96 : 19,036.10 = 7,825.88 : x
  2. Step 2: Convert to fraction form
    13,793.96/19,036.10 = 7,825.88/x
  3. Step 3: Cross multiply
    13,793.96x = 19,036.10 × 7,825.88
  4. Step 4: Simplify right side
    13,793.96x = 148,974,195.14
  5. Step 5: Solve for x
    x = 148,974,195.14/13,793.96
  6. Step 6: Final answer
    x = 10,799.96

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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.