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Finding the Fourth Proportional to 52,745.96, 79,148.19 and 21,603.08

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Solution

The fourth proportional to 52,745.96, 79,148.19 and 21,603.08 is: 32,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,745.96 : 79,148.19 = 21,603.08 : x
  2. Step 2: Convert to fraction form
    52,745.96/79,148.19 = 21,603.08/x
  3. Step 3: Cross multiply
    52,745.96x = 79,148.19 × 21,603.08
  4. Step 4: Simplify right side
    52,745.96x = 1,709,844,680.43
  5. Step 5: Solve for x
    x = 1,709,844,680.43/52,745.96
  6. Step 6: Final answer
    x = 32,416.60

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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.