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Finding the Fourth Proportional to 30,601.86, 45,903.29 and 10,611.98

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Solution

The fourth proportional to 30,601.86, 45,903.29 and 10,611.98 is: 15,918.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.86 : 45,903.29 = 10,611.98 : x
  2. Step 2: Convert to fraction form
    30,601.86/45,903.29 = 10,611.98/x
  3. Step 3: Cross multiply
    30,601.86x = 45,903.29 × 10,611.98
  4. Step 4: Simplify right side
    30,601.86x = 487,124,936.70
  5. Step 5: Solve for x
    x = 487,124,936.70/30,601.86
  6. Step 6: Final answer
    x = 15,918.15

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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.