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Finding the Fourth Proportional to 8,036.53, 11,078.62 and 5,639.24

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Solution

The fourth proportional to 8,036.53, 11,078.62 and 5,639.24 is: 7,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,036.53 : 11,078.62 = 5,639.24 : x
  2. Step 2: Convert to fraction form
    8,036.53/11,078.62 = 5,639.24/x
  3. Step 3: Cross multiply
    8,036.53x = 11,078.62 × 5,639.24
  4. Step 4: Simplify right side
    8,036.53x = 62,475,010.65
  5. Step 5: Solve for x
    x = 62,475,010.65/8,036.53
  6. Step 6: Final answer
    x = 7,773.88

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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.