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Finding the Fourth Proportional to 3,113.16, 4,669.74 and 1,798.92

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Solution

The fourth proportional to 3,113.16, 4,669.74 and 1,798.92 is: 2,698.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.16 : 4,669.74 = 1,798.92 : x
  2. Step 2: Convert to fraction form
    3,113.16/4,669.74 = 1,798.92/x
  3. Step 3: Cross multiply
    3,113.16x = 4,669.74 × 1,798.92
  4. Step 4: Simplify right side
    3,113.16x = 8,400,488.68
  5. Step 5: Solve for x
    x = 8,400,488.68/3,113.16
  6. Step 6: Final answer
    x = 2,698.38

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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.