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Finding the Fourth Proportional to 55,653.53, 83,462.53 and 18,203.51

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Solution

The fourth proportional to 55,653.53, 83,462.53 and 18,203.51 is: 27,299.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.53 : 83,462.53 = 18,203.51 : x
  2. Step 2: Convert to fraction form
    55,653.53/83,462.53 = 18,203.51/x
  3. Step 3: Cross multiply
    55,653.53x = 83,462.53 × 18,203.51
  4. Step 4: Simplify right side
    55,653.53x = 1,519,310,910.82
  5. Step 5: Solve for x
    x = 1,519,310,910.82/55,653.53
  6. Step 6: Final answer
    x = 27,299.45

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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.