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Finding the Fourth Proportional to 34,708.50, 47,904.21 and 19,804.50

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Solution

The fourth proportional to 34,708.50, 47,904.21 and 19,804.50 is: 27,333.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,708.50 : 47,904.21 = 19,804.50 : x
  2. Step 2: Convert to fraction form
    34,708.50/47,904.21 = 19,804.50/x
  3. Step 3: Cross multiply
    34,708.50x = 47,904.21 × 19,804.50
  4. Step 4: Simplify right side
    34,708.50x = 948,718,926.95
  5. Step 5: Solve for x
    x = 948,718,926.95/34,708.50
  6. Step 6: Final answer
    x = 27,333.91

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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.