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Finding the Fourth Proportional to 11,888.92, 16,395.24 and 9,506.44

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Solution

The fourth proportional to 11,888.92, 16,395.24 and 9,506.44 is: 13,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,888.92 : 16,395.24 = 9,506.44 : x
  2. Step 2: Convert to fraction form
    11,888.92/16,395.24 = 9,506.44/x
  3. Step 3: Cross multiply
    11,888.92x = 16,395.24 × 9,506.44
  4. Step 4: Simplify right side
    11,888.92x = 155,860,365.35
  5. Step 5: Solve for x
    x = 155,860,365.35/11,888.92
  6. Step 6: Final answer
    x = 13,109.72

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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.