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Finding the Fourth Proportional to 8,852.66, 12,212.08 and 7,175.96

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Solution

The fourth proportional to 8,852.66, 12,212.08 and 7,175.96 is: 9,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,852.66 : 12,212.08 = 7,175.96 : x
  2. Step 2: Convert to fraction form
    8,852.66/12,212.08 = 7,175.96/x
  3. Step 3: Cross multiply
    8,852.66x = 12,212.08 × 7,175.96
  4. Step 4: Simplify right side
    8,852.66x = 87,633,397.60
  5. Step 5: Solve for x
    x = 87,633,397.60/8,852.66
  6. Step 6: Final answer
    x = 9,899.10

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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.