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Finding the Fourth Proportional to 56,505.81, 84,737.04 and 19,055.76

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Solution

The fourth proportional to 56,505.81, 84,737.04 and 19,055.76 is: 28,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.81 : 84,737.04 = 19,055.76 : x
  2. Step 2: Convert to fraction form
    56,505.81/84,737.04 = 19,055.76/x
  3. Step 3: Cross multiply
    56,505.81x = 84,737.04 × 19,055.76
  4. Step 4: Simplify right side
    56,505.81x = 1,614,728,697.35
  5. Step 5: Solve for x
    x = 1,614,728,697.35/56,505.81
  6. Step 6: Final answer
    x = 28,576.33

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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.