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Finding the Fourth Proportional to 5,260.71, 7,894.31 and 2,922.51

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Solution

The fourth proportional to 5,260.71, 7,894.31 and 2,922.51 is: 4,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.71 : 7,894.31 = 2,922.51 : x
  2. Step 2: Convert to fraction form
    5,260.71/7,894.31 = 2,922.51/x
  3. Step 3: Cross multiply
    5,260.71x = 7,894.31 × 2,922.51
  4. Step 4: Simplify right side
    5,260.71x = 23,071,185.31
  5. Step 5: Solve for x
    x = 23,071,185.31/5,260.71
  6. Step 6: Final answer
    x = 4,385.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.