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Finding the Fourth Proportional to 29,607.30, 40,845.15 and 18,846.45

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Solution

The fourth proportional to 29,607.30, 40,845.15 and 18,846.45 is: 25,999.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,607.30 : 40,845.15 = 18,846.45 : x
  2. Step 2: Convert to fraction form
    29,607.30/40,845.15 = 18,846.45/x
  3. Step 3: Cross multiply
    29,607.30x = 40,845.15 × 18,846.45
  4. Step 4: Simplify right side
    29,607.30x = 769,786,077.22
  5. Step 5: Solve for x
    x = 769,786,077.22/29,607.30
  6. Step 6: Final answer
    x = 25,999.87

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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.