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Finding the Fourth Proportional to 6,531.78, 9,801.18 and 4,341.54

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Solution

The fourth proportional to 6,531.78, 9,801.18 and 4,341.54 is: 6,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.78 : 9,801.18 = 4,341.54 : x
  2. Step 2: Convert to fraction form
    6,531.78/9,801.18 = 4,341.54/x
  3. Step 3: Cross multiply
    6,531.78x = 9,801.18 × 4,341.54
  4. Step 4: Simplify right side
    6,531.78x = 42,552,215.02
  5. Step 5: Solve for x
    x = 42,552,215.02/6,531.78
  6. Step 6: Final answer
    x = 6,514.64

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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.