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Finding the Fourth Proportional to 60,645.79, 83,690.63 and 33,787.81

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Solution

The fourth proportional to 60,645.79, 83,690.63 and 33,787.81 is: 46,626.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,645.79 : 83,690.63 = 33,787.81 : x
  2. Step 2: Convert to fraction form
    60,645.79/83,690.63 = 33,787.81/x
  3. Step 3: Cross multiply
    60,645.79x = 83,690.63 × 33,787.81
  4. Step 4: Simplify right side
    60,645.79x = 2,827,722,686.77
  5. Step 5: Solve for x
    x = 2,827,722,686.77/60,645.79
  6. Step 6: Final answer
    x = 46,626.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.