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Finding the Fourth Proportional to 3,359.81, 4,636.74 and 1,867.89

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Solution

The fourth proportional to 3,359.81, 4,636.74 and 1,867.89 is: 2,577.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.81 : 4,636.74 = 1,867.89 : x
  2. Step 2: Convert to fraction form
    3,359.81/4,636.74 = 1,867.89/x
  3. Step 3: Cross multiply
    3,359.81x = 4,636.74 × 1,867.89
  4. Step 4: Simplify right side
    3,359.81x = 8,660,920.28
  5. Step 5: Solve for x
    x = 8,660,920.28/3,359.81
  6. Step 6: Final answer
    x = 2,577.80

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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.