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Finding the Fourth Proportional to 10,431.34, 14,395.02 and 5,651.10

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Solution

The fourth proportional to 10,431.34, 14,395.02 and 5,651.10 is: 7,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.34 : 14,395.02 = 5,651.10 : x
  2. Step 2: Convert to fraction form
    10,431.34/14,395.02 = 5,651.10/x
  3. Step 3: Cross multiply
    10,431.34x = 14,395.02 × 5,651.10
  4. Step 4: Simplify right side
    10,431.34x = 81,347,697.52
  5. Step 5: Solve for x
    x = 81,347,697.52/10,431.34
  6. Step 6: Final answer
    x = 7,798.39

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Why These Related Problems?

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