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Finding the Fourth Proportional to 9,695.57, 13,379.10 and 5,446.40

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Solution

The fourth proportional to 9,695.57, 13,379.10 and 5,446.40 is: 7,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,695.57 : 13,379.10 = 5,446.40 : x
  2. Step 2: Convert to fraction form
    9,695.57/13,379.10 = 5,446.40/x
  3. Step 3: Cross multiply
    9,695.57x = 13,379.10 × 5,446.40
  4. Step 4: Simplify right side
    9,695.57x = 72,867,930.24
  5. Step 5: Solve for x
    x = 72,867,930.24/9,695.57
  6. Step 6: Final answer
    x = 7,515.59

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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.