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Finding the Fourth Proportional to 40,083.99, 60,139.80 and 17,912.67

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Solution

The fourth proportional to 40,083.99, 60,139.80 and 17,912.67 is: 26,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,083.99 : 60,139.80 = 17,912.67 : x
  2. Step 2: Convert to fraction form
    40,083.99/60,139.80 = 17,912.67/x
  3. Step 3: Cross multiply
    40,083.99x = 60,139.80 × 17,912.67
  4. Step 4: Simplify right side
    40,083.99x = 1,077,264,391.27
  5. Step 5: Solve for x
    x = 1,077,264,391.27/40,083.99
  6. Step 6: Final answer
    x = 26,875.18

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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.