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Finding the Fourth Proportional to 1,934.84, 2,668.92 and 1,805.24

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Solution

The fourth proportional to 1,934.84, 2,668.92 and 1,805.24 is: 2,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.84 : 2,668.92 = 1,805.24 : x
  2. Step 2: Convert to fraction form
    1,934.84/2,668.92 = 1,805.24/x
  3. Step 3: Cross multiply
    1,934.84x = 2,668.92 × 1,805.24
  4. Step 4: Simplify right side
    1,934.84x = 4,818,041.14
  5. Step 5: Solve for x
    x = 4,818,041.14/1,934.84
  6. Step 6: Final answer
    x = 2,490.15

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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.