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Finding the Fourth Proportional to 19,101.21, 28,652.21 and 5,953.69

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Solution

The fourth proportional to 19,101.21, 28,652.21 and 5,953.69 is: 8,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.21 : 28,652.21 = 5,953.69 : x
  2. Step 2: Convert to fraction form
    19,101.21/28,652.21 = 5,953.69/x
  3. Step 3: Cross multiply
    19,101.21x = 28,652.21 × 5,953.69
  4. Step 4: Simplify right side
    19,101.21x = 170,586,376.15
  5. Step 5: Solve for x
    x = 170,586,376.15/19,101.21
  6. Step 6: Final answer
    x = 8,930.66

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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.