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Finding the Fourth Proportional to 7,916.69, 10,924.72 and 4,379.82

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Solution

The fourth proportional to 7,916.69, 10,924.72 and 4,379.82 is: 6,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.69 : 10,924.72 = 4,379.82 : x
  2. Step 2: Convert to fraction form
    7,916.69/10,924.72 = 4,379.82/x
  3. Step 3: Cross multiply
    7,916.69x = 10,924.72 × 4,379.82
  4. Step 4: Simplify right side
    7,916.69x = 47,848,307.15
  5. Step 5: Solve for x
    x = 47,848,307.15/7,916.69
  6. Step 6: Final answer
    x = 6,043.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.