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Finding the Fourth Proportional to 14,775, 22,162.52 and 14,403.20

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Solution

The fourth proportional to 14,775, 22,162.52 and 14,403.20 is: 21,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,775 : 22,162.52 = 14,403.20 : x
  2. Step 2: Convert to fraction form
    14,775/22,162.52 = 14,403.20/x
  3. Step 3: Cross multiply
    14,775x = 22,162.52 × 14,403.20
  4. Step 4: Simplify right side
    14,775x = 319,211,208.06
  5. Step 5: Solve for x
    x = 319,211,208.06/14,775
  6. Step 6: Final answer
    x = 21,604.82

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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.