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Finding the Fourth Proportional to 13,806.58, 20,707.71 and 4,572.58

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Solution

The fourth proportional to 13,806.58, 20,707.71 and 4,572.58 is: 6,858.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.58 : 20,707.71 = 4,572.58 : x
  2. Step 2: Convert to fraction form
    13,806.58/20,707.71 = 4,572.58/x
  3. Step 3: Cross multiply
    13,806.58x = 20,707.71 × 4,572.58
  4. Step 4: Simplify right side
    13,806.58x = 94,687,660.59
  5. Step 5: Solve for x
    x = 94,687,660.59/13,806.58
  6. Step 6: Final answer
    x = 6,858.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.