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Finding the Fourth Proportional to 3,362.75, 4,640.49 and 1,870.63

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Solution

The fourth proportional to 3,362.75, 4,640.49 and 1,870.63 is: 2,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,362.75 : 4,640.49 = 1,870.63 : x
  2. Step 2: Convert to fraction form
    3,362.75/4,640.49 = 1,870.63/x
  3. Step 3: Cross multiply
    3,362.75x = 4,640.49 × 1,870.63
  4. Step 4: Simplify right side
    3,362.75x = 8,680,628.21
  5. Step 5: Solve for x
    x = 8,680,628.21/3,362.75
  6. Step 6: Final answer
    x = 2,581.41

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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.