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Finding the Fourth Proportional to 56,484.78, 84,700.87 and 20,944.66

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Solution

The fourth proportional to 56,484.78, 84,700.87 and 20,944.66 is: 31,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,484.78 : 84,700.87 = 20,944.66 : x
  2. Step 2: Convert to fraction form
    56,484.78/84,700.87 = 20,944.66/x
  3. Step 3: Cross multiply
    56,484.78x = 84,700.87 × 20,944.66
  4. Step 4: Simplify right side
    56,484.78x = 1,774,030,923.85
  5. Step 5: Solve for x
    x = 1,774,030,923.85/56,484.78
  6. Step 6: Final answer
    x = 31,407.24

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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.