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Finding the Fourth Proportional to 30,744, 46,116 and 9,967.50

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Solution

The fourth proportional to 30,744, 46,116 and 9,967.50 is: 14,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,744 : 46,116 = 9,967.50 : x
  2. Step 2: Convert to fraction form
    30,744/46,116 = 9,967.50/x
  3. Step 3: Cross multiply
    30,744x = 46,116 × 9,967.50
  4. Step 4: Simplify right side
    30,744x = 459,661,230
  5. Step 5: Solve for x
    x = 459,661,230/30,744
  6. Step 6: Final answer
    x = 14,951.25

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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.