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Finding the Fourth Proportional to 19,074.64, 28,612.04 and 6,754

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Solution

The fourth proportional to 19,074.64, 28,612.04 and 6,754 is: 10,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,074.64 : 28,612.04 = 6,754 : x
  2. Step 2: Convert to fraction form
    19,074.64/28,612.04 = 6,754/x
  3. Step 3: Cross multiply
    19,074.64x = 28,612.04 × 6,754
  4. Step 4: Simplify right side
    19,074.64x = 193,245,718.16
  5. Step 5: Solve for x
    x = 193,245,718.16/19,074.64
  6. Step 6: Final answer
    x = 10,131.03

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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.