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Finding the Fourth Proportional to 8,885.25, 12,262.04 and 5,109.64

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Solution

The fourth proportional to 8,885.25, 12,262.04 and 5,109.64 is: 7,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.25 : 12,262.04 = 5,109.64 : x
  2. Step 2: Convert to fraction form
    8,885.25/12,262.04 = 5,109.64/x
  3. Step 3: Cross multiply
    8,885.25x = 12,262.04 × 5,109.64
  4. Step 4: Simplify right side
    8,885.25x = 62,654,610.07
  5. Step 5: Solve for x
    x = 62,654,610.07/8,885.25
  6. Step 6: Final answer
    x = 7,051.53

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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.