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Finding the Fourth Proportional to 64,950.82, 97,347.86 and 31,620.94

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Solution

The fourth proportional to 64,950.82, 97,347.86 and 31,620.94 is: 47,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,950.82 : 97,347.86 = 31,620.94 : x
  2. Step 2: Convert to fraction form
    64,950.82/97,347.86 = 31,620.94/x
  3. Step 3: Cross multiply
    64,950.82x = 97,347.86 × 31,620.94
  4. Step 4: Simplify right side
    64,950.82x = 3,078,230,840.19
  5. Step 5: Solve for x
    x = 3,078,230,840.19/64,950.82
  6. Step 6: Final answer
    x = 47,393.26

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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.