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Finding the Fourth Proportional to 9,372.12, 14,060 and 2,798.16

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Solution

The fourth proportional to 9,372.12, 14,060 and 2,798.16 is: 4,197.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.12 : 14,060 = 2,798.16 : x
  2. Step 2: Convert to fraction form
    9,372.12/14,060 = 2,798.16/x
  3. Step 3: Cross multiply
    9,372.12x = 14,060 × 2,798.16
  4. Step 4: Simplify right side
    9,372.12x = 39,342,129.60
  5. Step 5: Solve for x
    x = 39,342,129.60/9,372.12
  6. Step 6: Final answer
    x = 4,197.78

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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.