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Finding the Fourth Proportional to 57,999.94, 86,999.91 and 14,223.94

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Solution

The fourth proportional to 57,999.94, 86,999.91 and 14,223.94 is: 21,335.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.94 : 86,999.91 = 14,223.94 : x
  2. Step 2: Convert to fraction form
    57,999.94/86,999.91 = 14,223.94/x
  3. Step 3: Cross multiply
    57,999.94x = 86,999.91 × 14,223.94
  4. Step 4: Simplify right side
    57,999.94x = 1,237,481,499.85
  5. Step 5: Solve for x
    x = 1,237,481,499.85/57,999.94
  6. Step 6: Final answer
    x = 21,335.91

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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.