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Finding the Fourth Proportional to 9,916.88, 14,875.42 and 3,253.28

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Solution

The fourth proportional to 9,916.88, 14,875.42 and 3,253.28 is: 4,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.88 : 14,875.42 = 3,253.28 : x
  2. Step 2: Convert to fraction form
    9,916.88/14,875.42 = 3,253.28/x
  3. Step 3: Cross multiply
    9,916.88x = 14,875.42 × 3,253.28
  4. Step 4: Simplify right side
    9,916.88x = 48,393,906.38
  5. Step 5: Solve for x
    x = 48,393,906.38/9,916.88
  6. Step 6: Final answer
    x = 4,879.95

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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.