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Finding the Fourth Proportional to 14,765.21, 22,111.83 and 9,764.54

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Solution

The fourth proportional to 14,765.21, 22,111.83 and 9,764.54 is: 14,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,765.21 : 22,111.83 = 9,764.54 : x
  2. Step 2: Convert to fraction form
    14,765.21/22,111.83 = 9,764.54/x
  3. Step 3: Cross multiply
    14,765.21x = 22,111.83 × 9,764.54
  4. Step 4: Simplify right side
    14,765.21x = 215,911,737.95
  5. Step 5: Solve for x
    x = 215,911,737.95/14,765.21
  6. Step 6: Final answer
    x = 14,623.01

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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.