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Finding the Fourth Proportional to 14,961.61, 22,421.21 and 8,301.02

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Solution

The fourth proportional to 14,961.61, 22,421.21 and 8,301.02 is: 12,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,961.61 : 22,421.21 = 8,301.02 : x
  2. Step 2: Convert to fraction form
    14,961.61/22,421.21 = 8,301.02/x
  3. Step 3: Cross multiply
    14,961.61x = 22,421.21 × 8,301.02
  4. Step 4: Simplify right side
    14,961.61x = 186,118,759.02
  5. Step 5: Solve for x
    x = 186,118,759.02/14,961.61
  6. Step 6: Final answer
    x = 12,439.75

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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.