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Finding the Fourth Proportional to 8,916.67, 13,374.69 and 2,342.98

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Solution

The fourth proportional to 8,916.67, 13,374.69 and 2,342.98 is: 3,514.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.67 : 13,374.69 = 2,342.98 : x
  2. Step 2: Convert to fraction form
    8,916.67/13,374.69 = 2,342.98/x
  3. Step 3: Cross multiply
    8,916.67x = 13,374.69 × 2,342.98
  4. Step 4: Simplify right side
    8,916.67x = 31,336,631.18
  5. Step 5: Solve for x
    x = 31,336,631.18/8,916.67
  6. Step 6: Final answer
    x = 3,514.39

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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.