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Finding the Fourth Proportional to 11,173.95, 16,764.80 and 7,009.02

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Solution

The fourth proportional to 11,173.95, 16,764.80 and 7,009.02 is: 10,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.95 : 16,764.80 = 7,009.02 : x
  2. Step 2: Convert to fraction form
    11,173.95/16,764.80 = 7,009.02/x
  3. Step 3: Cross multiply
    11,173.95x = 16,764.80 × 7,009.02
  4. Step 4: Simplify right side
    11,173.95x = 117,504,783.45
  5. Step 5: Solve for x
    x = 117,504,783.45/11,173.95
  6. Step 6: Final answer
    x = 10,515.96

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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.