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Finding the Fourth Proportional to 19,047.56, 26,280.99 and 11,084.99

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Solution

The fourth proportional to 19,047.56, 26,280.99 and 11,084.99 is: 15,294.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047.56 : 26,280.99 = 11,084.99 : x
  2. Step 2: Convert to fraction form
    19,047.56/26,280.99 = 11,084.99/x
  3. Step 3: Cross multiply
    19,047.56x = 26,280.99 × 11,084.99
  4. Step 4: Simplify right side
    19,047.56x = 291,324,379.94
  5. Step 5: Solve for x
    x = 291,324,379.94/19,047.56
  6. Step 6: Final answer
    x = 15,294.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.