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Finding the Fourth Proportional to 11,299.59, 16,947.90 and 2,980.26

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Solution

The fourth proportional to 11,299.59, 16,947.90 and 2,980.26 is: 4,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.59 : 16,947.90 = 2,980.26 : x
  2. Step 2: Convert to fraction form
    11,299.59/16,947.90 = 2,980.26/x
  3. Step 3: Cross multiply
    11,299.59x = 16,947.90 × 2,980.26
  4. Step 4: Simplify right side
    11,299.59x = 50,509,148.45
  5. Step 5: Solve for x
    x = 50,509,148.45/11,299.59
  6. Step 6: Final answer
    x = 4,470.00

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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.