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Finding the Fourth Proportional to 11,104.60, 16,656.90 and 5,920.60

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Solution

The fourth proportional to 11,104.60, 16,656.90 and 5,920.60 is: 8,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.60 : 16,656.90 = 5,920.60 : x
  2. Step 2: Convert to fraction form
    11,104.60/16,656.90 = 5,920.60/x
  3. Step 3: Cross multiply
    11,104.60x = 16,656.90 × 5,920.60
  4. Step 4: Simplify right side
    11,104.60x = 98,618,842.14
  5. Step 5: Solve for x
    x = 98,618,842.14/11,104.60
  6. Step 6: Final answer
    x = 8,880.90

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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.