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Finding the Fourth Proportional to 9,939.16, 13,714.14 and 6,794.20

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Solution

The fourth proportional to 9,939.16, 13,714.14 and 6,794.20 is: 9,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.16 : 13,714.14 = 6,794.20 : x
  2. Step 2: Convert to fraction form
    9,939.16/13,714.14 = 6,794.20/x
  3. Step 3: Cross multiply
    9,939.16x = 13,714.14 × 6,794.20
  4. Step 4: Simplify right side
    9,939.16x = 93,176,609.99
  5. Step 5: Solve for x
    x = 93,176,609.99/9,939.16
  6. Step 6: Final answer
    x = 9,374.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.