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Finding the Fourth Proportional to 13,593.60, 20,390.40 and 7,032.60

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Solution

The fourth proportional to 13,593.60, 20,390.40 and 7,032.60 is: 10,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.60 : 20,390.40 = 7,032.60 : x
  2. Step 2: Convert to fraction form
    13,593.60/20,390.40 = 7,032.60/x
  3. Step 3: Cross multiply
    13,593.60x = 20,390.40 × 7,032.60
  4. Step 4: Simplify right side
    13,593.60x = 143,397,527.04
  5. Step 5: Solve for x
    x = 143,397,527.04/13,593.60
  6. Step 6: Final answer
    x = 10,548.90

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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.