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Finding the Fourth Proportional to 19,951.01, 29,923.26 and 9,421.01

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Solution

The fourth proportional to 19,951.01, 29,923.26 and 9,421.01 is: 14,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,951.01 : 29,923.26 = 9,421.01 : x
  2. Step 2: Convert to fraction form
    19,951.01/29,923.26 = 9,421.01/x
  3. Step 3: Cross multiply
    19,951.01x = 29,923.26 × 9,421.01
  4. Step 4: Simplify right side
    19,951.01x = 281,907,182.08
  5. Step 5: Solve for x
    x = 281,907,182.08/19,951.01
  6. Step 6: Final answer
    x = 14,129.97

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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.