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Finding the Fourth Proportional to 9,918.83, 14,864.85 and 3,672.99

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Solution

The fourth proportional to 9,918.83, 14,864.85 and 3,672.99 is: 5,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.83 : 14,864.85 = 3,672.99 : x
  2. Step 2: Convert to fraction form
    9,918.83/14,864.85 = 3,672.99/x
  3. Step 3: Cross multiply
    9,918.83x = 14,864.85 × 3,672.99
  4. Step 4: Simplify right side
    9,918.83x = 54,598,445.40
  5. Step 5: Solve for x
    x = 54,598,445.40/9,918.83
  6. Step 6: Final answer
    x = 5,504.52

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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.