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Finding the Fourth Proportional to 1,895.11, 2,854.07 and 1,678.47

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Solution

The fourth proportional to 1,895.11, 2,854.07 and 1,678.47 is: 2,527.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.11 : 2,854.07 = 1,678.47 : x
  2. Step 2: Convert to fraction form
    1,895.11/2,854.07 = 1,678.47/x
  3. Step 3: Cross multiply
    1,895.11x = 2,854.07 × 1,678.47
  4. Step 4: Simplify right side
    1,895.11x = 4,790,470.87
  5. Step 5: Solve for x
    x = 4,790,470.87/1,895.11
  6. Step 6: Final answer
    x = 2,527.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.