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Finding the Fourth Proportional to 10,893.40, 16,216.90 and 10,828.60

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Solution

The fourth proportional to 10,893.40, 16,216.90 and 10,828.60 is: 16,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,893.40 : 16,216.90 = 10,828.60 : x
  2. Step 2: Convert to fraction form
    10,893.40/16,216.90 = 10,828.60/x
  3. Step 3: Cross multiply
    10,893.40x = 16,216.90 × 10,828.60
  4. Step 4: Simplify right side
    10,893.40x = 175,606,323.34
  5. Step 5: Solve for x
    x = 175,606,323.34/10,893.40
  6. Step 6: Final answer
    x = 16,120.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.