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Finding the Fourth Proportional to 7,468.52, 11,203.02 and 4,005.78

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Solution

The fourth proportional to 7,468.52, 11,203.02 and 4,005.78 is: 6,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,468.52 : 11,203.02 = 4,005.78 : x
  2. Step 2: Convert to fraction form
    7,468.52/11,203.02 = 4,005.78/x
  3. Step 3: Cross multiply
    7,468.52x = 11,203.02 × 4,005.78
  4. Step 4: Simplify right side
    7,468.52x = 44,876,833.46
  5. Step 5: Solve for x
    x = 44,876,833.46/7,468.52
  6. Step 6: Final answer
    x = 6,008.80

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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.