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Finding the Fourth Proportional to 29,580.36, 40,811.08 and 19,513.80

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Solution

The fourth proportional to 29,580.36, 40,811.08 and 19,513.80 is: 26,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,580.36 : 40,811.08 = 19,513.80 : x
  2. Step 2: Convert to fraction form
    29,580.36/40,811.08 = 19,513.80/x
  3. Step 3: Cross multiply
    29,580.36x = 40,811.08 × 19,513.80
  4. Step 4: Simplify right side
    29,580.36x = 796,379,252.90
  5. Step 5: Solve for x
    x = 796,379,252.90/29,580.36
  6. Step 6: Final answer
    x = 26,922.57

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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.