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Finding the Fourth Proportional to 8,699.79, 13,044.02 and 5,729.25

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Solution

The fourth proportional to 8,699.79, 13,044.02 and 5,729.25 is: 8,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.79 : 13,044.02 = 5,729.25 : x
  2. Step 2: Convert to fraction form
    8,699.79/13,044.02 = 5,729.25/x
  3. Step 3: Cross multiply
    8,699.79x = 13,044.02 × 5,729.25
  4. Step 4: Simplify right side
    8,699.79x = 74,732,422.94
  5. Step 5: Solve for x
    x = 74,732,422.94/8,699.79
  6. Step 6: Final answer
    x = 8,590.14

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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.