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Finding the Fourth Proportional to 56,270.67, 84,379.98 and 20,723.01

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Solution

The fourth proportional to 56,270.67, 84,379.98 and 20,723.01 is: 31,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,270.67 : 84,379.98 = 20,723.01 : x
  2. Step 2: Convert to fraction form
    56,270.67/84,379.98 = 20,723.01/x
  3. Step 3: Cross multiply
    56,270.67x = 84,379.98 × 20,723.01
  4. Step 4: Simplify right side
    56,270.67x = 1,748,607,169.34
  5. Step 5: Solve for x
    x = 1,748,607,169.34/56,270.67
  6. Step 6: Final answer
    x = 31,074.93

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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.