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Finding the Fourth Proportional to 9,998.58, 13,787.83 and 6,018.90

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Solution

The fourth proportional to 9,998.58, 13,787.83 and 6,018.90 is: 8,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.58 : 13,787.83 = 6,018.90 : x
  2. Step 2: Convert to fraction form
    9,998.58/13,787.83 = 6,018.90/x
  3. Step 3: Cross multiply
    9,998.58x = 13,787.83 × 6,018.90
  4. Step 4: Simplify right side
    9,998.58x = 82,987,569.99
  5. Step 5: Solve for x
    x = 82,987,569.99/9,998.58
  6. Step 6: Final answer
    x = 8,299.94

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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.