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Finding the Fourth Proportional to 21,355.76, 32,033.64 and 10,960.88

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Solution

The fourth proportional to 21,355.76, 32,033.64 and 10,960.88 is: 16,441.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.76 : 32,033.64 = 10,960.88 : x
  2. Step 2: Convert to fraction form
    21,355.76/32,033.64 = 10,960.88/x
  3. Step 3: Cross multiply
    21,355.76x = 32,033.64 × 10,960.88
  4. Step 4: Simplify right side
    21,355.76x = 351,116,884.00
  5. Step 5: Solve for x
    x = 351,116,884.00/21,355.76
  6. Step 6: Final answer
    x = 16,441.32

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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.