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Finding the Fourth Proportional to 11,029.60, 16,549.68 and 6,868.48

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Solution

The fourth proportional to 11,029.60, 16,549.68 and 6,868.48 is: 10,306.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.60 : 16,549.68 = 6,868.48 : x
  2. Step 2: Convert to fraction form
    11,029.60/16,549.68 = 6,868.48/x
  3. Step 3: Cross multiply
    11,029.60x = 16,549.68 × 6,868.48
  4. Step 4: Simplify right side
    11,029.60x = 113,671,146.09
  5. Step 5: Solve for x
    x = 113,671,146.09/11,029.60
  6. Step 6: Final answer
    x = 10,306.01

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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.