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Finding the Fourth Proportional to 56,613.20, 84,916.20 and 21,552.08

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Solution

The fourth proportional to 56,613.20, 84,916.20 and 21,552.08 is: 32,326.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,613.20 : 84,916.20 = 21,552.08 : x
  2. Step 2: Convert to fraction form
    56,613.20/84,916.20 = 21,552.08/x
  3. Step 3: Cross multiply
    56,613.20x = 84,916.20 × 21,552.08
  4. Step 4: Simplify right side
    56,613.20x = 1,830,120,735.70
  5. Step 5: Solve for x
    x = 1,830,120,735.70/56,613.20
  6. Step 6: Final answer
    x = 32,326.75

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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.