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Finding the Fourth Proportional to 35,558.64, 49,069.11 and 19,640.01

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Solution

The fourth proportional to 35,558.64, 49,069.11 and 19,640.01 is: 27,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,558.64 : 49,069.11 = 19,640.01 : x
  2. Step 2: Convert to fraction form
    35,558.64/49,069.11 = 19,640.01/x
  3. Step 3: Cross multiply
    35,558.64x = 49,069.11 × 19,640.01
  4. Step 4: Simplify right side
    35,558.64x = 963,717,811.09
  5. Step 5: Solve for x
    x = 963,717,811.09/35,558.64
  6. Step 6: Final answer
    x = 27,102.21

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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.