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Finding the Fourth Proportional to 8,710.63, 12,025.65 and 5,735.11

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Solution

The fourth proportional to 8,710.63, 12,025.65 and 5,735.11 is: 7,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.63 : 12,025.65 = 5,735.11 : x
  2. Step 2: Convert to fraction form
    8,710.63/12,025.65 = 5,735.11/x
  3. Step 3: Cross multiply
    8,710.63x = 12,025.65 × 5,735.11
  4. Step 4: Simplify right side
    8,710.63x = 68,968,407.30
  5. Step 5: Solve for x
    x = 68,968,407.30/8,710.63
  6. Step 6: Final answer
    x = 7,917.73

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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.