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Finding the Fourth Proportional to 18,703.87, 25,845.56 and 17,792.71

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Solution

The fourth proportional to 18,703.87, 25,845.56 and 17,792.71 is: 24,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.87 : 25,845.56 = 17,792.71 : x
  2. Step 2: Convert to fraction form
    18,703.87/25,845.56 = 17,792.71/x
  3. Step 3: Cross multiply
    18,703.87x = 25,845.56 × 17,792.71
  4. Step 4: Simplify right side
    18,703.87x = 459,862,464.90
  5. Step 5: Solve for x
    x = 459,862,464.90/18,703.87
  6. Step 6: Final answer
    x = 24,586.49

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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.