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Finding the Fourth Proportional to 9,853.02, 14,779.54 and 3,279.20

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Solution

The fourth proportional to 9,853.02, 14,779.54 and 3,279.20 is: 4,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,853.02 : 14,779.54 = 3,279.20 : x
  2. Step 2: Convert to fraction form
    9,853.02/14,779.54 = 3,279.20/x
  3. Step 3: Cross multiply
    9,853.02x = 14,779.54 × 3,279.20
  4. Step 4: Simplify right side
    9,853.02x = 48,465,067.57
  5. Step 5: Solve for x
    x = 48,465,067.57/9,853.02
  6. Step 6: Final answer
    x = 4,918.80

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1.5x scale

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.