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Finding the Fourth Proportional to 29,999.47, 44,999.94 and 7,813.84

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Solution

The fourth proportional to 29,999.47, 44,999.94 and 7,813.84 is: 11,720.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,999.47 : 44,999.94 = 7,813.84 : x
  2. Step 2: Convert to fraction form
    29,999.47/44,999.94 = 7,813.84/x
  3. Step 3: Cross multiply
    29,999.47x = 44,999.94 × 7,813.84
  4. Step 4: Simplify right side
    29,999.47x = 351,622,331.17
  5. Step 5: Solve for x
    x = 351,622,331.17/29,999.47
  6. Step 6: Final answer
    x = 11,720.95

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1.5x scale

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.