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Finding the Fourth Proportional to 4,723.54, 7,085.25 and 2,124.64

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Solution

The fourth proportional to 4,723.54, 7,085.25 and 2,124.64 is: 3,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,723.54 : 7,085.25 = 2,124.64 : x
  2. Step 2: Convert to fraction form
    4,723.54/7,085.25 = 2,124.64/x
  3. Step 3: Cross multiply
    4,723.54x = 7,085.25 × 2,124.64
  4. Step 4: Simplify right side
    4,723.54x = 15,053,605.56
  5. Step 5: Solve for x
    x = 15,053,605.56/4,723.54
  6. Step 6: Final answer
    x = 3,186.93

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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.