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Finding the Fourth Proportional to 27,319.77, 40,979.63 and 9,801.90

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Solution

The fourth proportional to 27,319.77, 40,979.63 and 9,801.90 is: 14,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,319.77 : 40,979.63 = 9,801.90 : x
  2. Step 2: Convert to fraction form
    27,319.77/40,979.63 = 9,801.90/x
  3. Step 3: Cross multiply
    27,319.77x = 40,979.63 × 9,801.90
  4. Step 4: Simplify right side
    27,319.77x = 401,678,259.80
  5. Step 5: Solve for x
    x = 401,678,259.80/27,319.77
  6. Step 6: Final answer
    x = 14,702.84

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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.