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Finding the Fourth Proportional to 64,274.95, 96,474.76 and 31,018.42

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Solution

The fourth proportional to 64,274.95, 96,474.76 and 31,018.42 is: 46,557.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,274.95 : 96,474.76 = 31,018.42 : x
  2. Step 2: Convert to fraction form
    64,274.95/96,474.76 = 31,018.42/x
  3. Step 3: Cross multiply
    64,274.95x = 96,474.76 × 31,018.42
  4. Step 4: Simplify right side
    64,274.95x = 2,992,494,625.08
  5. Step 5: Solve for x
    x = 2,992,494,625.08/64,274.95
  6. Step 6: Final answer
    x = 46,557.71

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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.