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Finding the Fourth Proportional to 3,714.84, 5,126.38 and 2,036.21

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Solution

The fourth proportional to 3,714.84, 5,126.38 and 2,036.21 is: 2,809.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,714.84 : 5,126.38 = 2,036.21 : x
  2. Step 2: Convert to fraction form
    3,714.84/5,126.38 = 2,036.21/x
  3. Step 3: Cross multiply
    3,714.84x = 5,126.38 × 2,036.21
  4. Step 4: Simplify right side
    3,714.84x = 10,438,355.50
  5. Step 5: Solve for x
    x = 10,438,355.50/3,714.84
  6. Step 6: Final answer
    x = 2,809.91

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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.