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Finding the Fourth Proportional to 9,930.16, 13,698.48 and 6,743.62

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Solution

The fourth proportional to 9,930.16, 13,698.48 and 6,743.62 is: 9,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,930.16 : 13,698.48 = 6,743.62 : x
  2. Step 2: Convert to fraction form
    9,930.16/13,698.48 = 6,743.62/x
  3. Step 3: Cross multiply
    9,930.16x = 13,698.48 × 6,743.62
  4. Step 4: Simplify right side
    9,930.16x = 92,377,343.70
  5. Step 5: Solve for x
    x = 92,377,343.70/9,930.16
  6. Step 6: Final answer
    x = 9,302.70

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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.