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Finding the Fourth Proportional to 2,693.70, 4,022.40 and 2,539.92

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Solution

The fourth proportional to 2,693.70, 4,022.40 and 2,539.92 is: 3,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,693.70 : 4,022.40 = 2,539.92 : x
  2. Step 2: Convert to fraction form
    2,693.70/4,022.40 = 2,539.92/x
  3. Step 3: Cross multiply
    2,693.70x = 4,022.40 × 2,539.92
  4. Step 4: Simplify right side
    2,693.70x = 10,216,574.21
  5. Step 5: Solve for x
    x = 10,216,574.21/2,693.70
  6. Step 6: Final answer
    x = 3,792.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.