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Finding the Fourth Proportional to 9,939.59, 14,911.20 and 4,093.01

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Solution

The fourth proportional to 9,939.59, 14,911.20 and 4,093.01 is: 6,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.59 : 14,911.20 = 4,093.01 : x
  2. Step 2: Convert to fraction form
    9,939.59/14,911.20 = 4,093.01/x
  3. Step 3: Cross multiply
    9,939.59x = 14,911.20 × 4,093.01
  4. Step 4: Simplify right side
    9,939.59x = 61,031,616.16
  5. Step 5: Solve for x
    x = 61,031,616.16/9,939.59
  6. Step 6: Final answer
    x = 6,140.26

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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.