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Finding the Fourth Proportional to 18,347.60, 25,323.72 and 12,060.56

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Solution

The fourth proportional to 18,347.60, 25,323.72 and 12,060.56 is: 16,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.60 : 25,323.72 = 12,060.56 : x
  2. Step 2: Convert to fraction form
    18,347.60/25,323.72 = 12,060.56/x
  3. Step 3: Cross multiply
    18,347.60x = 25,323.72 × 12,060.56
  4. Step 4: Simplify right side
    18,347.60x = 305,418,244.48
  5. Step 5: Solve for x
    x = 305,418,244.48/18,347.60
  6. Step 6: Final answer
    x = 16,646.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.