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Finding the Fourth Proportional to 19,067.90, 28,609.95 and 9,202.10

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Solution

The fourth proportional to 19,067.90, 28,609.95 and 9,202.10 is: 13,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.90 : 28,609.95 = 9,202.10 : x
  2. Step 2: Convert to fraction form
    19,067.90/28,609.95 = 9,202.10/x
  3. Step 3: Cross multiply
    19,067.90x = 28,609.95 × 9,202.10
  4. Step 4: Simplify right side
    19,067.90x = 263,271,620.90
  5. Step 5: Solve for x
    x = 263,271,620.90/19,067.90
  6. Step 6: Final answer
    x = 13,807.06

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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.