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Finding the Fourth Proportional to 36,111.30, 49,832.11 and 21,004.39

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Solution

The fourth proportional to 36,111.30, 49,832.11 and 21,004.39 is: 28,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,111.30 : 49,832.11 = 21,004.39 : x
  2. Step 2: Convert to fraction form
    36,111.30/49,832.11 = 21,004.39/x
  3. Step 3: Cross multiply
    36,111.30x = 49,832.11 × 21,004.39
  4. Step 4: Simplify right side
    36,111.30x = 1,046,693,072.96
  5. Step 5: Solve for x
    x = 1,046,693,072.96/36,111.30
  6. Step 6: Final answer
    x = 28,985.20

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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.