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Finding the Fourth Proportional to 18,606.98, 25,673.64 and 11,055.86

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Solution

The fourth proportional to 18,606.98, 25,673.64 and 11,055.86 is: 15,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.98 : 25,673.64 = 11,055.86 : x
  2. Step 2: Convert to fraction form
    18,606.98/25,673.64 = 11,055.86/x
  3. Step 3: Cross multiply
    18,606.98x = 25,673.64 × 11,055.86
  4. Step 4: Simplify right side
    18,606.98x = 283,844,169.53
  5. Step 5: Solve for x
    x = 283,844,169.53/18,606.98
  6. Step 6: Final answer
    x = 15,254.71

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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.