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Finding the Fourth Proportional to 34,368.52, 51,565.04 and 21,205.56

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Solution

The fourth proportional to 34,368.52, 51,565.04 and 21,205.56 is: 31,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,368.52 : 51,565.04 = 21,205.56 : x
  2. Step 2: Convert to fraction form
    34,368.52/51,565.04 = 21,205.56/x
  3. Step 3: Cross multiply
    34,368.52x = 51,565.04 × 21,205.56
  4. Step 4: Simplify right side
    34,368.52x = 1,093,465,549.62
  5. Step 5: Solve for x
    x = 1,093,465,549.62/34,368.52
  6. Step 6: Final answer
    x = 31,815.90

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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.