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Finding the Fourth Proportional to 17,085.43, 25,628.07 and 5,398.63

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Solution

The fourth proportional to 17,085.43, 25,628.07 and 5,398.63 is: 8,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,085.43 : 25,628.07 = 5,398.63 : x
  2. Step 2: Convert to fraction form
    17,085.43/25,628.07 = 5,398.63/x
  3. Step 3: Cross multiply
    17,085.43x = 25,628.07 × 5,398.63
  4. Step 4: Simplify right side
    17,085.43x = 138,356,440.55
  5. Step 5: Solve for x
    x = 138,356,440.55/17,085.43
  6. Step 6: Final answer
    x = 8,097.92

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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.