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Finding the Fourth Proportional to 35,611.50, 49,143.06 and 19,696.08

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Solution

The fourth proportional to 35,611.50, 49,143.06 and 19,696.08 is: 27,180.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,611.50 : 49,143.06 = 19,696.08 : x
  2. Step 2: Convert to fraction form
    35,611.50/49,143.06 = 19,696.08/x
  3. Step 3: Cross multiply
    35,611.50x = 49,143.06 × 19,696.08
  4. Step 4: Simplify right side
    35,611.50x = 967,925,641.20
  5. Step 5: Solve for x
    x = 967,925,641.20/35,611.50
  6. Step 6: Final answer
    x = 27,180.14

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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.