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Finding the Fourth Proportional to 56,586.96, 84,866.56 and 20,557.52

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Solution

The fourth proportional to 56,586.96, 84,866.56 and 20,557.52 is: 30,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,586.96 : 84,866.56 = 20,557.52 : x
  2. Step 2: Convert to fraction form
    56,586.96/84,866.56 = 20,557.52/x
  3. Step 3: Cross multiply
    56,586.96x = 84,866.56 × 20,557.52
  4. Step 4: Simplify right side
    56,586.96x = 1,744,646,004.53
  5. Step 5: Solve for x
    x = 1,744,646,004.53/56,586.96
  6. Step 6: Final answer
    x = 30,831.24

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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.