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Finding the Fourth Proportional to 1,934.25, 2,668.13 and 1,148.25

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Solution

The fourth proportional to 1,934.25, 2,668.13 and 1,148.25 is: 1,583.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.25 : 2,668.13 = 1,148.25 : x
  2. Step 2: Convert to fraction form
    1,934.25/2,668.13 = 1,148.25/x
  3. Step 3: Cross multiply
    1,934.25x = 2,668.13 × 1,148.25
  4. Step 4: Simplify right side
    1,934.25x = 3,063,674.53
  5. Step 5: Solve for x
    x = 3,063,674.53/1,934.25
  6. Step 6: Final answer
    x = 1,583.91

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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.