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Finding the Fourth Proportional to 11,267.40, 16,868.70 and 6,893.40

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Solution

The fourth proportional to 11,267.40, 16,868.70 and 6,893.40 is: 10,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,267.40 : 16,868.70 = 6,893.40 : x
  2. Step 2: Convert to fraction form
    11,267.40/16,868.70 = 6,893.40/x
  3. Step 3: Cross multiply
    11,267.40x = 16,868.70 × 6,893.40
  4. Step 4: Simplify right side
    11,267.40x = 116,282,696.58
  5. Step 5: Solve for x
    x = 116,282,696.58/11,267.40
  6. Step 6: Final answer
    x = 10,320.28

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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.