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Finding the Fourth Proportional to 16,487.88, 22,754.91 and 9,415.37

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Solution

The fourth proportional to 16,487.88, 22,754.91 and 9,415.37 is: 12,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,487.88 : 22,754.91 = 9,415.37 : x
  2. Step 2: Convert to fraction form
    16,487.88/22,754.91 = 9,415.37/x
  3. Step 3: Cross multiply
    16,487.88x = 22,754.91 × 9,415.37
  4. Step 4: Simplify right side
    16,487.88x = 214,245,783.19
  5. Step 5: Solve for x
    x = 214,245,783.19/16,487.88
  6. Step 6: Final answer
    x = 12,994.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.