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Finding the Fourth Proportional to 14,833.78, 20,473.97 and 9,174.01

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Solution

The fourth proportional to 14,833.78, 20,473.97 and 9,174.01 is: 12,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,833.78 : 20,473.97 = 9,174.01 : x
  2. Step 2: Convert to fraction form
    14,833.78/20,473.97 = 9,174.01/x
  3. Step 3: Cross multiply
    14,833.78x = 20,473.97 × 9,174.01
  4. Step 4: Simplify right side
    14,833.78x = 187,828,346.85
  5. Step 5: Solve for x
    x = 187,828,346.85/14,833.78
  6. Step 6: Final answer
    x = 12,662.20

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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.