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Finding the Fourth Proportional to 38,999.27, 58,499.01 and 12,706.07

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Solution

The fourth proportional to 38,999.27, 58,499.01 and 12,706.07 is: 19,059.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,999.27 : 58,499.01 = 12,706.07 : x
  2. Step 2: Convert to fraction form
    38,999.27/58,499.01 = 12,706.07/x
  3. Step 3: Cross multiply
    38,999.27x = 58,499.01 × 12,706.07
  4. Step 4: Simplify right side
    38,999.27x = 743,292,223.50
  5. Step 5: Solve for x
    x = 743,292,223.50/38,999.27
  6. Step 6: Final answer
    x = 19,059.13

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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.