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Finding the Fourth Proportional to 56,504.55, 84,723.99 and 21,425.07

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Solution

The fourth proportional to 56,504.55, 84,723.99 and 21,425.07 is: 32,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,504.55 : 84,723.99 = 21,425.07 : x
  2. Step 2: Convert to fraction form
    56,504.55/84,723.99 = 21,425.07/x
  3. Step 3: Cross multiply
    56,504.55x = 84,723.99 × 21,425.07
  4. Step 4: Simplify right side
    56,504.55x = 1,815,217,416.43
  5. Step 5: Solve for x
    x = 1,815,217,416.43/56,504.55
  6. Step 6: Final answer
    x = 32,125.15

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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.