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Finding the Fourth Proportional to 8,991.78, 13,495.99 and 4,552.56

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Solution

The fourth proportional to 8,991.78, 13,495.99 and 4,552.56 is: 6,833.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.78 : 13,495.99 = 4,552.56 : x
  2. Step 2: Convert to fraction form
    8,991.78/13,495.99 = 4,552.56/x
  3. Step 3: Cross multiply
    8,991.78x = 13,495.99 × 4,552.56
  4. Step 4: Simplify right side
    8,991.78x = 61,441,315.21
  5. Step 5: Solve for x
    x = 61,441,315.21/8,991.78
  6. Step 6: Final answer
    x = 6,833.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.