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Finding the Fourth Proportional to 8,745.44, 12,065.24 and 5,762.72

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Solution

The fourth proportional to 8,745.44, 12,065.24 and 5,762.72 is: 7,950.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.44 : 12,065.24 = 5,762.72 : x
  2. Step 2: Convert to fraction form
    8,745.44/12,065.24 = 5,762.72/x
  3. Step 3: Cross multiply
    8,745.44x = 12,065.24 × 5,762.72
  4. Step 4: Simplify right side
    8,745.44x = 69,528,599.85
  5. Step 5: Solve for x
    x = 69,528,599.85/8,745.44
  6. Step 6: Final answer
    x = 7,950.27

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1.5x scale

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.