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Finding the Fourth Proportional to 12,611.03, 17,384.20 and 10,369.01

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Solution

The fourth proportional to 12,611.03, 17,384.20 and 10,369.01 is: 14,293.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611.03 : 17,384.20 = 10,369.01 : x
  2. Step 2: Convert to fraction form
    12,611.03/17,384.20 = 10,369.01/x
  3. Step 3: Cross multiply
    12,611.03x = 17,384.20 × 10,369.01
  4. Step 4: Simplify right side
    12,611.03x = 180,257,019.51
  5. Step 5: Solve for x
    x = 180,257,019.51/12,611.03
  6. Step 6: Final answer
    x = 14,293.61

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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.