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Finding the Fourth Proportional to 11,224.87, 15,495.92 and 8,701.31

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Solution

The fourth proportional to 11,224.87, 15,495.92 and 8,701.31 is: 12,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,224.87 : 15,495.92 = 8,701.31 : x
  2. Step 2: Convert to fraction form
    11,224.87/15,495.92 = 8,701.31/x
  3. Step 3: Cross multiply
    11,224.87x = 15,495.92 × 8,701.31
  4. Step 4: Simplify right side
    11,224.87x = 134,834,803.66
  5. Step 5: Solve for x
    x = 134,834,803.66/11,224.87
  6. Step 6: Final answer
    x = 12,012.15

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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.