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Finding the Fourth Proportional to 2,601.10, 3,901.65 and 957.70

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Solution

The fourth proportional to 2,601.10, 3,901.65 and 957.70 is: 1,436.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,601.10 : 3,901.65 = 957.70 : x
  2. Step 2: Convert to fraction form
    2,601.10/3,901.65 = 957.70/x
  3. Step 3: Cross multiply
    2,601.10x = 3,901.65 × 957.70
  4. Step 4: Simplify right side
    2,601.10x = 3,736,610.21
  5. Step 5: Solve for x
    x = 3,736,610.21/2,601.10
  6. Step 6: Final answer
    x = 1,436.55

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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.