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Finding the Fourth Proportional to 45,894.37, 68,829.01 and 12,606.51

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Solution

The fourth proportional to 45,894.37, 68,829.01 and 12,606.51 is: 18,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,894.37 : 68,829.01 = 12,606.51 : x
  2. Step 2: Convert to fraction form
    45,894.37/68,829.01 = 12,606.51/x
  3. Step 3: Cross multiply
    45,894.37x = 68,829.01 × 12,606.51
  4. Step 4: Simplify right side
    45,894.37x = 867,693,360.50
  5. Step 5: Solve for x
    x = 867,693,360.50/45,894.37
  6. Step 6: Final answer
    x = 18,906.31

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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.