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Finding the Fourth Proportional to 11,868.92, 17,806.06 and 6,319.34

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Solution

The fourth proportional to 11,868.92, 17,806.06 and 6,319.34 is: 9,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.92 : 17,806.06 = 6,319.34 : x
  2. Step 2: Convert to fraction form
    11,868.92/17,806.06 = 6,319.34/x
  3. Step 3: Cross multiply
    11,868.92x = 17,806.06 × 6,319.34
  4. Step 4: Simplify right side
    11,868.92x = 112,522,547.20
  5. Step 5: Solve for x
    x = 112,522,547.20/11,868.92
  6. Step 6: Final answer
    x = 9,480.44

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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.