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Finding the Fourth Proportional to 7,095.72, 9,792.48 and 3,951.96

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Solution

The fourth proportional to 7,095.72, 9,792.48 and 3,951.96 is: 5,453.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,095.72 : 9,792.48 = 3,951.96 : x
  2. Step 2: Convert to fraction form
    7,095.72/9,792.48 = 3,951.96/x
  3. Step 3: Cross multiply
    7,095.72x = 9,792.48 × 3,951.96
  4. Step 4: Simplify right side
    7,095.72x = 38,699,489.26
  5. Step 5: Solve for x
    x = 38,699,489.26/7,095.72
  6. Step 6: Final answer
    x = 5,453.92

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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.