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Finding the Fourth Proportional to 11,916.93, 17,881.23 and 4,800.88

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Solution

The fourth proportional to 11,916.93, 17,881.23 and 4,800.88 is: 7,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.93 : 17,881.23 = 4,800.88 : x
  2. Step 2: Convert to fraction form
    11,916.93/17,881.23 = 4,800.88/x
  3. Step 3: Cross multiply
    11,916.93x = 17,881.23 × 4,800.88
  4. Step 4: Simplify right side
    11,916.93x = 85,845,564.18
  5. Step 5: Solve for x
    x = 85,845,564.18/11,916.93
  6. Step 6: Final answer
    x = 7,203.66

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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.