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Finding the Fourth Proportional to 8,713.87, 12,025.11 and 4,734.99

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Solution

The fourth proportional to 8,713.87, 12,025.11 and 4,734.99 is: 6,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.87 : 12,025.11 = 4,734.99 : x
  2. Step 2: Convert to fraction form
    8,713.87/12,025.11 = 4,734.99/x
  3. Step 3: Cross multiply
    8,713.87x = 12,025.11 × 4,734.99
  4. Step 4: Simplify right side
    8,713.87x = 56,938,775.60
  5. Step 5: Solve for x
    x = 56,938,775.60/8,713.87
  6. Step 6: Final answer
    x = 6,534.27

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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.