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Finding the Fourth Proportional to 10,992.60, 16,475.54 and 7,477.20

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Solution

The fourth proportional to 10,992.60, 16,475.54 and 7,477.20 is: 11,206.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.60 : 16,475.54 = 7,477.20 : x
  2. Step 2: Convert to fraction form
    10,992.60/16,475.54 = 7,477.20/x
  3. Step 3: Cross multiply
    10,992.60x = 16,475.54 × 7,477.20
  4. Step 4: Simplify right side
    10,992.60x = 123,190,870.30
  5. Step 5: Solve for x
    x = 123,190,870.30/10,992.60
  6. Step 6: Final answer
    x = 11,206.71

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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.