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Finding the Fourth Proportional to 19,306.01, 28,964.01 and 5,455.01

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Solution

The fourth proportional to 19,306.01, 28,964.01 and 5,455.01 is: 8,183.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.01 : 28,964.01 = 5,455.01 : x
  2. Step 2: Convert to fraction form
    19,306.01/28,964.01 = 5,455.01/x
  3. Step 3: Cross multiply
    19,306.01x = 28,964.01 × 5,455.01
  4. Step 4: Simplify right side
    19,306.01x = 157,998,964.19
  5. Step 5: Solve for x
    x = 157,998,964.19/19,306.01
  6. Step 6: Final answer
    x = 8,183.93

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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.