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Finding the Fourth Proportional to 3,148.47, 4,723.39 and 957.37

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Solution

The fourth proportional to 3,148.47, 4,723.39 and 957.37 is: 1,436.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.47 : 4,723.39 = 957.37 : x
  2. Step 2: Convert to fraction form
    3,148.47/4,723.39 = 957.37/x
  3. Step 3: Cross multiply
    3,148.47x = 4,723.39 × 957.37
  4. Step 4: Simplify right side
    3,148.47x = 4,522,031.88
  5. Step 5: Solve for x
    x = 4,522,031.88/3,148.47
  6. Step 6: Final answer
    x = 1,436.26

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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.