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Finding the Fourth Proportional to 35,991.73, 53,969.95 and 12,614.77

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Solution

The fourth proportional to 35,991.73, 53,969.95 and 12,614.77 is: 18,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,991.73 : 53,969.95 = 12,614.77 : x
  2. Step 2: Convert to fraction form
    35,991.73/53,969.95 = 12,614.77/x
  3. Step 3: Cross multiply
    35,991.73x = 53,969.95 × 12,614.77
  4. Step 4: Simplify right side
    35,991.73x = 680,818,506.16
  5. Step 5: Solve for x
    x = 680,818,506.16/35,991.73
  6. Step 6: Final answer
    x = 18,915.97

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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.