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Finding the Fourth Proportional to 2,518.15, 3,776.33 and 957.74

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Solution

The fourth proportional to 2,518.15, 3,776.33 and 957.74 is: 1,436.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518.15 : 3,776.33 = 957.74 : x
  2. Step 2: Convert to fraction form
    2,518.15/3,776.33 = 957.74/x
  3. Step 3: Cross multiply
    2,518.15x = 3,776.33 × 957.74
  4. Step 4: Simplify right side
    2,518.15x = 3,616,742.29
  5. Step 5: Solve for x
    x = 3,616,742.29/2,518.15
  6. Step 6: Final answer
    x = 1,436.27

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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.