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Finding the Fourth Proportional to 11,607.60, 17,416.80 and 6,067.20

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Solution

The fourth proportional to 11,607.60, 17,416.80 and 6,067.20 is: 9,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,607.60 : 17,416.80 = 6,067.20 : x
  2. Step 2: Convert to fraction form
    11,607.60/17,416.80 = 6,067.20/x
  3. Step 3: Cross multiply
    11,607.60x = 17,416.80 × 6,067.20
  4. Step 4: Simplify right side
    11,607.60x = 105,671,208.96
  5. Step 5: Solve for x
    x = 105,671,208.96/11,607.60
  6. Step 6: Final answer
    x = 9,103.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.