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Finding the Fourth Proportional to 3,565.62, 4,920.58 and 1,993.74

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Solution

The fourth proportional to 3,565.62, 4,920.58 and 1,993.74 is: 2,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.62 : 4,920.58 = 1,993.74 : x
  2. Step 2: Convert to fraction form
    3,565.62/4,920.58 = 1,993.74/x
  3. Step 3: Cross multiply
    3,565.62x = 4,920.58 × 1,993.74
  4. Step 4: Simplify right side
    3,565.62x = 9,810,357.17
  5. Step 5: Solve for x
    x = 9,810,357.17/3,565.62
  6. Step 6: Final answer
    x = 2,751.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.