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Finding the Fourth Proportional to 9,167.64, 12,650.46 and 5,187.99

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Solution

The fourth proportional to 9,167.64, 12,650.46 and 5,187.99 is: 7,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.64 : 12,650.46 = 5,187.99 : x
  2. Step 2: Convert to fraction form
    9,167.64/12,650.46 = 5,187.99/x
  3. Step 3: Cross multiply
    9,167.64x = 12,650.46 × 5,187.99
  4. Step 4: Simplify right side
    9,167.64x = 65,630,459.98
  5. Step 5: Solve for x
    x = 65,630,459.98/9,167.64
  6. Step 6: Final answer
    x = 7,158.93

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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.