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Finding the Fourth Proportional to 9,743.80, 13,445.04 and 5,551.96

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Solution

The fourth proportional to 9,743.80, 13,445.04 and 5,551.96 is: 7,660.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,743.80 : 13,445.04 = 5,551.96 : x
  2. Step 2: Convert to fraction form
    9,743.80/13,445.04 = 5,551.96/x
  3. Step 3: Cross multiply
    9,743.80x = 13,445.04 × 5,551.96
  4. Step 4: Simplify right side
    9,743.80x = 74,646,324.28
  5. Step 5: Solve for x
    x = 74,646,324.28/9,743.80
  6. Step 6: Final answer
    x = 7,660.90

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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.