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Finding the Fourth Proportional to 11,361.87, 15,679.23 and 6,582.47

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Solution

The fourth proportional to 11,361.87, 15,679.23 and 6,582.47 is: 9,083.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.87 : 15,679.23 = 6,582.47 : x
  2. Step 2: Convert to fraction form
    11,361.87/15,679.23 = 6,582.47/x
  3. Step 3: Cross multiply
    11,361.87x = 15,679.23 × 6,582.47
  4. Step 4: Simplify right side
    11,361.87x = 103,208,036.78
  5. Step 5: Solve for x
    x = 103,208,036.78/11,361.87
  6. Step 6: Final answer
    x = 9,083.72

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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.