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Finding the Fourth Proportional to 40,495.04, 60,742.56 and 20,761.01

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Solution

The fourth proportional to 40,495.04, 60,742.56 and 20,761.01 is: 31,141.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,495.04 : 60,742.56 = 20,761.01 : x
  2. Step 2: Convert to fraction form
    40,495.04/60,742.56 = 20,761.01/x
  3. Step 3: Cross multiply
    40,495.04x = 60,742.56 × 20,761.01
  4. Step 4: Simplify right side
    40,495.04x = 1,261,076,895.59
  5. Step 5: Solve for x
    x = 1,261,076,895.59/40,495.04
  6. Step 6: Final answer
    x = 31,141.52

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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.