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Finding the Fourth Proportional to 11,873.88, 16,371.60 and 9,607.60

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Solution

The fourth proportional to 11,873.88, 16,371.60 and 9,607.60 is: 13,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.88 : 16,371.60 = 9,607.60 : x
  2. Step 2: Convert to fraction form
    11,873.88/16,371.60 = 9,607.60/x
  3. Step 3: Cross multiply
    11,873.88x = 16,371.60 × 9,607.60
  4. Step 4: Simplify right side
    11,873.88x = 157,291,784.16
  5. Step 5: Solve for x
    x = 157,291,784.16/11,873.88
  6. Step 6: Final answer
    x = 13,246.87

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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.