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Finding the Fourth Proportional to 55,810.47, 83,697.93 and 18,361.79

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Solution

The fourth proportional to 55,810.47, 83,697.93 and 18,361.79 is: 27,536.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.47 : 83,697.93 = 18,361.79 : x
  2. Step 2: Convert to fraction form
    55,810.47/83,697.93 = 18,361.79/x
  3. Step 3: Cross multiply
    55,810.47x = 83,697.93 × 18,361.79
  4. Step 4: Simplify right side
    55,810.47x = 1,536,843,395.61
  5. Step 5: Solve for x
    x = 1,536,843,395.61/55,810.47
  6. Step 6: Final answer
    x = 27,536.83

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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.