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Finding the Fourth Proportional to 8,762.45, 12,093.36 and 5,576.07

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Solution

The fourth proportional to 8,762.45, 12,093.36 and 5,576.07 is: 7,695.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.45 : 12,093.36 = 5,576.07 : x
  2. Step 2: Convert to fraction form
    8,762.45/12,093.36 = 5,576.07/x
  3. Step 3: Cross multiply
    8,762.45x = 12,093.36 × 5,576.07
  4. Step 4: Simplify right side
    8,762.45x = 67,433,421.90
  5. Step 5: Solve for x
    x = 67,433,421.90/8,762.45
  6. Step 6: Final answer
    x = 7,695.73

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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.