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Finding the Fourth Proportional to 3,148.73, 4,723.87 and 957.34

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Solution

The fourth proportional to 3,148.73, 4,723.87 and 957.34 is: 1,436.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.73 : 4,723.87 = 957.34 : x
  2. Step 2: Convert to fraction form
    3,148.73/4,723.87 = 957.34/x
  3. Step 3: Cross multiply
    3,148.73x = 4,723.87 × 957.34
  4. Step 4: Simplify right side
    3,148.73x = 4,522,349.71
  5. Step 5: Solve for x
    x = 4,522,349.71/3,148.73
  6. Step 6: Final answer
    x = 1,436.25

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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.