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Finding the Fourth Proportional to 68,810.24, 103,149.60 and 22,031.12

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Solution

The fourth proportional to 68,810.24, 103,149.60 and 22,031.12 is: 33,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,810.24 : 103,149.60 = 22,031.12 : x
  2. Step 2: Convert to fraction form
    68,810.24/103,149.60 = 22,031.12/x
  3. Step 3: Cross multiply
    68,810.24x = 103,149.60 × 22,031.12
  4. Step 4: Simplify right side
    68,810.24x = 2,272,501,215.55
  5. Step 5: Solve for x
    x = 2,272,501,215.55/68,810.24
  6. Step 6: Final answer
    x = 33,025.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.