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Finding the Fourth Proportional to 16,859.34, 25,292.61 and 6,471

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Solution

The fourth proportional to 16,859.34, 25,292.61 and 6,471 is: 9,707.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,859.34 : 25,292.61 = 6,471 : x
  2. Step 2: Convert to fraction form
    16,859.34/25,292.61 = 6,471/x
  3. Step 3: Cross multiply
    16,859.34x = 25,292.61 × 6,471
  4. Step 4: Simplify right side
    16,859.34x = 163,668,479.31
  5. Step 5: Solve for x
    x = 163,668,479.31/16,859.34
  6. Step 6: Final answer
    x = 9,707.88

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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.