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Finding the Fourth Proportional to 56,559.60, 84,871.80 and 21,524.40

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Solution

The fourth proportional to 56,559.60, 84,871.80 and 21,524.40 is: 32,298.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,559.60 : 84,871.80 = 21,524.40 : x
  2. Step 2: Convert to fraction form
    56,559.60/84,871.80 = 21,524.40/x
  3. Step 3: Cross multiply
    56,559.60x = 84,871.80 × 21,524.40
  4. Step 4: Simplify right side
    56,559.60x = 1,826,814,571.92
  5. Step 5: Solve for x
    x = 1,826,814,571.92/56,559.60
  6. Step 6: Final answer
    x = 32,298.93

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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.