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Finding the Fourth Proportional to 64,541.78, 89,076.01 and 36,247.47

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Solution

The fourth proportional to 64,541.78, 89,076.01 and 36,247.47 is: 50,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,541.78 : 89,076.01 = 36,247.47 : x
  2. Step 2: Convert to fraction form
    64,541.78/89,076.01 = 36,247.47/x
  3. Step 3: Cross multiply
    64,541.78x = 89,076.01 × 36,247.47
  4. Step 4: Simplify right side
    64,541.78x = 3,228,780,090.81
  5. Step 5: Solve for x
    x = 3,228,780,090.81/64,541.78
  6. Step 6: Final answer
    x = 50,026.20

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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.