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Finding the Fourth Proportional to 55,326.70, 82,969.80 and 17,896.60

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Solution

The fourth proportional to 55,326.70, 82,969.80 and 17,896.60 is: 26,838.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,326.70 : 82,969.80 = 17,896.60 : x
  2. Step 2: Convert to fraction form
    55,326.70/82,969.80 = 17,896.60/x
  3. Step 3: Cross multiply
    55,326.70x = 82,969.80 × 17,896.60
  4. Step 4: Simplify right side
    55,326.70x = 1,484,877,322.68
  5. Step 5: Solve for x
    x = 1,484,877,322.68/55,326.70
  6. Step 6: Final answer
    x = 26,838.35

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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.