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Finding the Fourth Proportional to 40,393.02, 55,741.50 and 22,487.16

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Solution

The fourth proportional to 40,393.02, 55,741.50 and 22,487.16 is: 31,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,393.02 : 55,741.50 = 22,487.16 : x
  2. Step 2: Convert to fraction form
    40,393.02/55,741.50 = 22,487.16/x
  3. Step 3: Cross multiply
    40,393.02x = 55,741.50 × 22,487.16
  4. Step 4: Simplify right side
    40,393.02x = 1,253,468,029.14
  5. Step 5: Solve for x
    x = 1,253,468,029.14/40,393.02
  6. Step 6: Final answer
    x = 31,031.80

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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.