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Finding the Fourth Proportional to 19,551.66, 29,327.09 and 4,760.66

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Solution

The fourth proportional to 19,551.66, 29,327.09 and 4,760.66 is: 7,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,551.66 : 29,327.09 = 4,760.66 : x
  2. Step 2: Convert to fraction form
    19,551.66/29,327.09 = 4,760.66/x
  3. Step 3: Cross multiply
    19,551.66x = 29,327.09 × 4,760.66
  4. Step 4: Simplify right side
    19,551.66x = 139,616,133.84
  5. Step 5: Solve for x
    x = 139,616,133.84/19,551.66
  6. Step 6: Final answer
    x = 7,140.88

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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.