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Finding the Fourth Proportional to 17,215.05, 25,801.81 and 8,890.53

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Solution

The fourth proportional to 17,215.05, 25,801.81 and 8,890.53 is: 13,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,215.05 : 25,801.81 = 8,890.53 : x
  2. Step 2: Convert to fraction form
    17,215.05/25,801.81 = 8,890.53/x
  3. Step 3: Cross multiply
    17,215.05x = 25,801.81 × 8,890.53
  4. Step 4: Simplify right side
    17,215.05x = 229,391,765.86
  5. Step 5: Solve for x
    x = 229,391,765.86/17,215.05
  6. Step 6: Final answer
    x = 13,325.07

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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.