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Finding the Fourth Proportional to 19,136.25, 26,410.86 and 11,182.86

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Solution

The fourth proportional to 19,136.25, 26,410.86 and 11,182.86 is: 15,434.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,136.25 : 26,410.86 = 11,182.86 : x
  2. Step 2: Convert to fraction form
    19,136.25/26,410.86 = 11,182.86/x
  3. Step 3: Cross multiply
    19,136.25x = 26,410.86 × 11,182.86
  4. Step 4: Simplify right side
    19,136.25x = 295,348,949.86
  5. Step 5: Solve for x
    x = 295,348,949.86/19,136.25
  6. Step 6: Final answer
    x = 15,434.00

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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.