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Finding the Fourth Proportional to 19,863.76, 29,795.58 and 12,473.41

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Solution

The fourth proportional to 19,863.76, 29,795.58 and 12,473.41 is: 18,710.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.76 : 29,795.58 = 12,473.41 : x
  2. Step 2: Convert to fraction form
    19,863.76/29,795.58 = 12,473.41/x
  3. Step 3: Cross multiply
    19,863.76x = 29,795.58 × 12,473.41
  4. Step 4: Simplify right side
    19,863.76x = 371,652,485.53
  5. Step 5: Solve for x
    x = 371,652,485.53/19,863.76
  6. Step 6: Final answer
    x = 18,710.08

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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.