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Finding the Fourth Proportional to 8,693.98, 11,997.51 and 4,916.65

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Solution

The fourth proportional to 8,693.98, 11,997.51 and 4,916.65 is: 6,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.98 : 11,997.51 = 4,916.65 : x
  2. Step 2: Convert to fraction form
    8,693.98/11,997.51 = 4,916.65/x
  3. Step 3: Cross multiply
    8,693.98x = 11,997.51 × 4,916.65
  4. Step 4: Simplify right side
    8,693.98x = 58,987,515.26
  5. Step 5: Solve for x
    x = 58,987,515.26/8,693.98
  6. Step 6: Final answer
    x = 6,784.87

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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.