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Finding the Fourth Proportional to 18,574.71, 25,629.32 and 11,017.73

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Solution

The fourth proportional to 18,574.71, 25,629.32 and 11,017.73 is: 15,202.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.71 : 25,629.32 = 11,017.73 : x
  2. Step 2: Convert to fraction form
    18,574.71/25,629.32 = 11,017.73/x
  3. Step 3: Cross multiply
    18,574.71x = 25,629.32 × 11,017.73
  4. Step 4: Simplify right side
    18,574.71x = 282,376,744.61
  5. Step 5: Solve for x
    x = 282,376,744.61/18,574.71
  6. Step 6: Final answer
    x = 15,202.22

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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.