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Finding the Fourth Proportional to 11,230.01, 15,385.08 and 10,809.41

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Solution

The fourth proportional to 11,230.01, 15,385.08 and 10,809.41 is: 14,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,230.01 : 15,385.08 = 10,809.41 : x
  2. Step 2: Convert to fraction form
    11,230.01/15,385.08 = 10,809.41/x
  3. Step 3: Cross multiply
    11,230.01x = 15,385.08 × 10,809.41
  4. Step 4: Simplify right side
    11,230.01x = 166,303,637.60
  5. Step 5: Solve for x
    x = 166,303,637.60/11,230.01
  6. Step 6: Final answer
    x = 14,808.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.