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Finding the Fourth Proportional to 10,745.40, 16,103.12 and 5,804.40

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Solution

The fourth proportional to 10,745.40, 16,103.12 and 5,804.40 is: 8,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,745.40 : 16,103.12 = 5,804.40 : x
  2. Step 2: Convert to fraction form
    10,745.40/16,103.12 = 5,804.40/x
  3. Step 3: Cross multiply
    10,745.40x = 16,103.12 × 5,804.40
  4. Step 4: Simplify right side
    10,745.40x = 93,468,949.73
  5. Step 5: Solve for x
    x = 93,468,949.73/10,745.40
  6. Step 6: Final answer
    x = 8,698.51

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1.5x scale

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.