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Finding the Fourth Proportional to 14,750.20, 22,125.30 and 13,219.30

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Solution

The fourth proportional to 14,750.20, 22,125.30 and 13,219.30 is: 19,828.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.20 : 22,125.30 = 13,219.30 : x
  2. Step 2: Convert to fraction form
    14,750.20/22,125.30 = 13,219.30/x
  3. Step 3: Cross multiply
    14,750.20x = 22,125.30 × 13,219.30
  4. Step 4: Simplify right side
    14,750.20x = 292,480,978.29
  5. Step 5: Solve for x
    x = 292,480,978.29/14,750.20
  6. Step 6: Final answer
    x = 19,828.95

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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.