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Finding the Fourth Proportional to 8,851.32, 12,215.22 and 5,495.22

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Solution

The fourth proportional to 8,851.32, 12,215.22 and 5,495.22 is: 7,583.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.32 : 12,215.22 = 5,495.22 : x
  2. Step 2: Convert to fraction form
    8,851.32/12,215.22 = 5,495.22/x
  3. Step 3: Cross multiply
    8,851.32x = 12,215.22 × 5,495.22
  4. Step 4: Simplify right side
    8,851.32x = 67,125,321.25
  5. Step 5: Solve for x
    x = 67,125,321.25/8,851.32
  6. Step 6: Final answer
    x = 7,583.65

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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.