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Finding the Fourth Proportional to 8,775.72, 12,113.91 and 5,941.71

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Solution

The fourth proportional to 8,775.72, 12,113.91 and 5,941.71 is: 8,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.72 : 12,113.91 = 5,941.71 : x
  2. Step 2: Convert to fraction form
    8,775.72/12,113.91 = 5,941.71/x
  3. Step 3: Cross multiply
    8,775.72x = 12,113.91 × 5,941.71
  4. Step 4: Simplify right side
    8,775.72x = 71,977,340.19
  5. Step 5: Solve for x
    x = 71,977,340.19/8,775.72
  6. Step 6: Final answer
    x = 8,201.87

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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.