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Finding the Fourth Proportional to 21,896.70, 32,813.91 and 16,880.06

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Solution

The fourth proportional to 21,896.70, 32,813.91 and 16,880.06 is: 25,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.70 : 32,813.91 = 16,880.06 : x
  2. Step 2: Convert to fraction form
    21,896.70/32,813.91 = 16,880.06/x
  3. Step 3: Cross multiply
    21,896.70x = 32,813.91 × 16,880.06
  4. Step 4: Simplify right side
    21,896.70x = 553,900,851.67
  5. Step 5: Solve for x
    x = 553,900,851.67/21,896.70
  6. Step 6: Final answer
    x = 25,296.09

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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.