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Finding the Fourth Proportional to 9,279.93, 13,916.65 and 4,351.89

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Solution

The fourth proportional to 9,279.93, 13,916.65 and 4,351.89 is: 6,526.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279.93 : 13,916.65 = 4,351.89 : x
  2. Step 2: Convert to fraction form
    9,279.93/13,916.65 = 4,351.89/x
  3. Step 3: Cross multiply
    9,279.93x = 13,916.65 × 4,351.89
  4. Step 4: Simplify right side
    9,279.93x = 60,563,729.97
  5. Step 5: Solve for x
    x = 60,563,729.97/9,279.93
  6. Step 6: Final answer
    x = 6,526.31

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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.