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Finding the Fourth Proportional to 2,550.76, 3,826.14 and 907.16

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Solution

The fourth proportional to 2,550.76, 3,826.14 and 907.16 is: 1,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.76 : 3,826.14 = 907.16 : x
  2. Step 2: Convert to fraction form
    2,550.76/3,826.14 = 907.16/x
  3. Step 3: Cross multiply
    2,550.76x = 3,826.14 × 907.16
  4. Step 4: Simplify right side
    2,550.76x = 3,470,921.16
  5. Step 5: Solve for x
    x = 3,470,921.16/2,550.76
  6. Step 6: Final answer
    x = 1,360.74

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Double scale
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Similar ratio
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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.