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Finding the Fourth Proportional to 5,012.65, 6,917.29 and 2,774.49

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Solution

The fourth proportional to 5,012.65, 6,917.29 and 2,774.49 is: 3,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.65 : 6,917.29 = 2,774.49 : x
  2. Step 2: Convert to fraction form
    5,012.65/6,917.29 = 2,774.49/x
  3. Step 3: Cross multiply
    5,012.65x = 6,917.29 × 2,774.49
  4. Step 4: Simplify right side
    5,012.65x = 19,191,951.93
  5. Step 5: Solve for x
    x = 19,191,951.93/5,012.65
  6. Step 6: Final answer
    x = 3,828.70

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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.