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Finding the Fourth Proportional to 5,645.97, 7,792.92 and 3,288.51

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Solution

The fourth proportional to 5,645.97, 7,792.92 and 3,288.51 is: 4,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.97 : 7,792.92 = 3,288.51 : x
  2. Step 2: Convert to fraction form
    5,645.97/7,792.92 = 3,288.51/x
  3. Step 3: Cross multiply
    5,645.97x = 7,792.92 × 3,288.51
  4. Step 4: Simplify right side
    5,645.97x = 25,627,095.35
  5. Step 5: Solve for x
    x = 25,627,095.35/5,645.97
  6. Step 6: Final answer
    x = 4,539.01

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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.