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Finding the Fourth Proportional to 27,181.98, 40,919.99 and 19,444.86

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Solution

The fourth proportional to 27,181.98, 40,919.99 and 19,444.86 is: 29,272.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,181.98 : 40,919.99 = 19,444.86 : x
  2. Step 2: Convert to fraction form
    27,181.98/40,919.99 = 19,444.86/x
  3. Step 3: Cross multiply
    27,181.98x = 40,919.99 × 19,444.86
  4. Step 4: Simplify right side
    27,181.98x = 795,683,379.53
  5. Step 5: Solve for x
    x = 795,683,379.53/27,181.98
  6. Step 6: Final answer
    x = 29,272.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.