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Finding the Fourth Proportional to 11,359.92, 17,038.90 and 6,916.44

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Solution

The fourth proportional to 11,359.92, 17,038.90 and 6,916.44 is: 10,374.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.92 : 17,038.90 = 6,916.44 : x
  2. Step 2: Convert to fraction form
    11,359.92/17,038.90 = 6,916.44/x
  3. Step 3: Cross multiply
    11,359.92x = 17,038.90 × 6,916.44
  4. Step 4: Simplify right side
    11,359.92x = 117,848,529.52
  5. Step 5: Solve for x
    x = 117,848,529.52/11,359.92
  6. Step 6: Final answer
    x = 10,374.06

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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.