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Finding the Fourth Proportional to 17,785.51, 26,683.12 and 7,249.03

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Solution

The fourth proportional to 17,785.51, 26,683.12 and 7,249.03 is: 10,875.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,785.51 : 26,683.12 = 7,249.03 : x
  2. Step 2: Convert to fraction form
    17,785.51/26,683.12 = 7,249.03/x
  3. Step 3: Cross multiply
    17,785.51x = 26,683.12 × 7,249.03
  4. Step 4: Simplify right side
    17,785.51x = 193,426,679.73
  5. Step 5: Solve for x
    x = 193,426,679.73/17,785.51
  6. Step 6: Final answer
    x = 10,875.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.