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Finding the Fourth Proportional to 18,574.53, 25,632.75 and 10,076.64

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Solution

The fourth proportional to 18,574.53, 25,632.75 and 10,076.64 is: 13,905.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,574.53 : 25,632.75 = 10,076.64 : x
  2. Step 2: Convert to fraction form
    18,574.53/25,632.75 = 10,076.64/x
  3. Step 3: Cross multiply
    18,574.53x = 25,632.75 × 10,076.64
  4. Step 4: Simplify right side
    18,574.53x = 258,291,993.96
  5. Step 5: Solve for x
    x = 258,291,993.96/18,574.53
  6. Step 6: Final answer
    x = 13,905.71

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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.