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Finding the Fourth Proportional to 11,608.47, 17,415.41 and 9,245.50

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Solution

The fourth proportional to 11,608.47, 17,415.41 and 9,245.50 is: 13,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,608.47 : 17,415.41 = 9,245.50 : x
  2. Step 2: Convert to fraction form
    11,608.47/17,415.41 = 9,245.50/x
  3. Step 3: Cross multiply
    11,608.47x = 17,415.41 × 9,245.50
  4. Step 4: Simplify right side
    11,608.47x = 161,014,173.16
  5. Step 5: Solve for x
    x = 161,014,173.16/11,608.47
  6. Step 6: Final answer
    x = 13,870.40

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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.