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Finding the Fourth Proportional to 19,305.01, 28,962.51 and 5,454.01

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Solution

The fourth proportional to 19,305.01, 28,962.51 and 5,454.01 is: 8,182.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.01 : 28,962.51 = 5,454.01 : x
  2. Step 2: Convert to fraction form
    19,305.01/28,962.51 = 5,454.01/x
  3. Step 3: Cross multiply
    19,305.01x = 28,962.51 × 5,454.01
  4. Step 4: Simplify right side
    19,305.01x = 157,961,819.17
  5. Step 5: Solve for x
    x = 157,961,819.17/19,305.01
  6. Step 6: Final answer
    x = 8,182.43

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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.