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Finding the Fourth Proportional to 13,773.51, 20,660.00 and 4,539.51

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Solution

The fourth proportional to 13,773.51, 20,660.00 and 4,539.51 is: 6,809.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.51 : 20,660.00 = 4,539.51 : x
  2. Step 2: Convert to fraction form
    13,773.51/20,660.00 = 4,539.51/x
  3. Step 3: Cross multiply
    13,773.51x = 20,660.00 × 4,539.51
  4. Step 4: Simplify right side
    13,773.51x = 93,786,253.90
  5. Step 5: Solve for x
    x = 93,786,253.90/13,773.51
  6. Step 6: Final answer
    x = 6,809.18

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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.