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Finding the Fourth Proportional to 21,910.95, 32,880.98 and 8,059.95

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Solution

The fourth proportional to 21,910.95, 32,880.98 and 8,059.95 is: 12,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.95 : 32,880.98 = 8,059.95 : x
  2. Step 2: Convert to fraction form
    21,910.95/32,880.98 = 8,059.95/x
  3. Step 3: Cross multiply
    21,910.95x = 32,880.98 × 8,059.95
  4. Step 4: Simplify right side
    21,910.95x = 265,019,074.90
  5. Step 5: Solve for x
    x = 265,019,074.90/21,910.95
  6. Step 6: Final answer
    x = 12,095.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.