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Finding the Fourth Proportional to 9,859.92, 13,606.11 and 5,668.17

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Solution

The fourth proportional to 9,859.92, 13,606.11 and 5,668.17 is: 7,821.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859.92 : 13,606.11 = 5,668.17 : x
  2. Step 2: Convert to fraction form
    9,859.92/13,606.11 = 5,668.17/x
  3. Step 3: Cross multiply
    9,859.92x = 13,606.11 × 5,668.17
  4. Step 4: Simplify right side
    9,859.92x = 77,121,744.52
  5. Step 5: Solve for x
    x = 77,121,744.52/9,859.92
  6. Step 6: Final answer
    x = 7,821.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.