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Finding the Fourth Proportional to 11,193.80, 16,809.90 and 10,848.20

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Solution

The fourth proportional to 11,193.80, 16,809.90 and 10,848.20 is: 16,290.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,193.80 : 16,809.90 = 10,848.20 : x
  2. Step 2: Convert to fraction form
    11,193.80/16,809.90 = 10,848.20/x
  3. Step 3: Cross multiply
    11,193.80x = 16,809.90 × 10,848.20
  4. Step 4: Simplify right side
    11,193.80x = 182,357,157.18
  5. Step 5: Solve for x
    x = 182,357,157.18/11,193.80
  6. Step 6: Final answer
    x = 16,290.91

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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.