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Finding the Fourth Proportional to 19,285.55, 28,944.76 and 7,606.97

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Solution

The fourth proportional to 19,285.55, 28,944.76 and 7,606.97 is: 11,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.55 : 28,944.76 = 7,606.97 : x
  2. Step 2: Convert to fraction form
    19,285.55/28,944.76 = 7,606.97/x
  3. Step 3: Cross multiply
    19,285.55x = 28,944.76 × 7,606.97
  4. Step 4: Simplify right side
    19,285.55x = 220,181,920.98
  5. Step 5: Solve for x
    x = 220,181,920.98/19,285.55
  6. Step 6: Final answer
    x = 11,416.94

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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.