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Finding the Fourth Proportional to 11,926.48, 17,892.96 and 8,485.60

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Solution

The fourth proportional to 11,926.48, 17,892.96 and 8,485.60 is: 12,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.48 : 17,892.96 = 8,485.60 : x
  2. Step 2: Convert to fraction form
    11,926.48/17,892.96 = 8,485.60/x
  3. Step 3: Cross multiply
    11,926.48x = 17,892.96 × 8,485.60
  4. Step 4: Simplify right side
    11,926.48x = 151,832,501.38
  5. Step 5: Solve for x
    x = 151,832,501.38/11,926.48
  6. Step 6: Final answer
    x = 12,730.71

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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.