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Finding the Fourth Proportional to 3,833.70, 5,290.70 and 2,341.19

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Solution

The fourth proportional to 3,833.70, 5,290.70 and 2,341.19 is: 3,230.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.70 : 5,290.70 = 2,341.19 : x
  2. Step 2: Convert to fraction form
    3,833.70/5,290.70 = 2,341.19/x
  3. Step 3: Cross multiply
    3,833.70x = 5,290.70 × 2,341.19
  4. Step 4: Simplify right side
    3,833.70x = 12,386,495.77
  5. Step 5: Solve for x
    x = 12,386,495.77/3,833.70
  6. Step 6: Final answer
    x = 3,230.95

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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.