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Finding the Fourth Proportional to 17,129.48, 25,673.76 and 8,813.48

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Solution

The fourth proportional to 17,129.48, 25,673.76 and 8,813.48 is: 13,209.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,129.48 : 25,673.76 = 8,813.48 : x
  2. Step 2: Convert to fraction form
    17,129.48/25,673.76 = 8,813.48/x
  3. Step 3: Cross multiply
    17,129.48x = 25,673.76 × 8,813.48
  4. Step 4: Simplify right side
    17,129.48x = 226,275,041.92
  5. Step 5: Solve for x
    x = 226,275,041.92/17,129.48
  6. Step 6: Final answer
    x = 13,209.69

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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.