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Finding the Fourth Proportional to 14,679.40, 22,002.90 and 8,110.30

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Solution

The fourth proportional to 14,679.40, 22,002.90 and 8,110.30 is: 12,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679.40 : 22,002.90 = 8,110.30 : x
  2. Step 2: Convert to fraction form
    14,679.40/22,002.90 = 8,110.30/x
  3. Step 3: Cross multiply
    14,679.40x = 22,002.90 × 8,110.30
  4. Step 4: Simplify right side
    14,679.40x = 178,450,119.87
  5. Step 5: Solve for x
    x = 178,450,119.87/14,679.40
  6. Step 6: Final answer
    x = 12,156.50

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1.5x scale

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.