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Finding the Fourth Proportional to 12,703.80, 19,056.51 and 3,944.46

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Solution

The fourth proportional to 12,703.80, 19,056.51 and 3,944.46 is: 5,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,703.80 : 19,056.51 = 3,944.46 : x
  2. Step 2: Convert to fraction form
    12,703.80/19,056.51 = 3,944.46/x
  3. Step 3: Cross multiply
    12,703.80x = 19,056.51 × 3,944.46
  4. Step 4: Simplify right side
    12,703.80x = 75,167,641.43
  5. Step 5: Solve for x
    x = 75,167,641.43/12,703.80
  6. Step 6: Final answer
    x = 5,916.94

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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.