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Finding the Fourth Proportional to 61,505.28, 84,889.44 and 36,014.40

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Solution

The fourth proportional to 61,505.28, 84,889.44 and 36,014.40 is: 49,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,505.28 : 84,889.44 = 36,014.40 : x
  2. Step 2: Convert to fraction form
    61,505.28/84,889.44 = 36,014.40/x
  3. Step 3: Cross multiply
    61,505.28x = 84,889.44 × 36,014.40
  4. Step 4: Simplify right side
    61,505.28x = 3,057,242,247.94
  5. Step 5: Solve for x
    x = 3,057,242,247.94/61,505.28
  6. Step 6: Final answer
    x = 49,706.99

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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.