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Finding the Fourth Proportional to 3,148.41, 4,722.62 and 957.16

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Solution

The fourth proportional to 3,148.41, 4,722.62 and 957.16 is: 1,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.41 : 4,722.62 = 957.16 : x
  2. Step 2: Convert to fraction form
    3,148.41/4,722.62 = 957.16/x
  3. Step 3: Cross multiply
    3,148.41x = 4,722.62 × 957.16
  4. Step 4: Simplify right side
    3,148.41x = 4,520,302.96
  5. Step 5: Solve for x
    x = 4,520,302.96/3,148.41
  6. Step 6: Final answer
    x = 1,435.74

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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.