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Finding the Fourth Proportional to 64,917.93, 89,562.74 and 47,963.01

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Solution

The fourth proportional to 64,917.93, 89,562.74 and 47,963.01 is: 66,171.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,917.93 : 89,562.74 = 47,963.01 : x
  2. Step 2: Convert to fraction form
    64,917.93/89,562.74 = 47,963.01/x
  3. Step 3: Cross multiply
    64,917.93x = 89,562.74 × 47,963.01
  4. Step 4: Simplify right side
    64,917.93x = 4,295,698,354.43
  5. Step 5: Solve for x
    x = 4,295,698,354.43/64,917.93
  6. Step 6: Final answer
    x = 66,171.22

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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.