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Finding the Fourth Proportional to 16,148.01, 22,145.21 and 15,474.48

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Solution

The fourth proportional to 16,148.01, 22,145.21 and 15,474.48 is: 21,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,148.01 : 22,145.21 = 15,474.48 : x
  2. Step 2: Convert to fraction form
    16,148.01/22,145.21 = 15,474.48/x
  3. Step 3: Cross multiply
    16,148.01x = 22,145.21 × 15,474.48
  4. Step 4: Simplify right side
    16,148.01x = 342,685,498.51
  5. Step 5: Solve for x
    x = 342,685,498.51/16,148.01
  6. Step 6: Final answer
    x = 21,221.53

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.