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Finding the Fourth Proportional to 56,674.80, 85,008.60 and 19,234.80

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Solution

The fourth proportional to 56,674.80, 85,008.60 and 19,234.80 is: 28,850.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,674.80 : 85,008.60 = 19,234.80 : x
  2. Step 2: Convert to fraction form
    56,674.80/85,008.60 = 19,234.80/x
  3. Step 3: Cross multiply
    56,674.80x = 85,008.60 × 19,234.80
  4. Step 4: Simplify right side
    56,674.80x = 1,635,123,419.28
  5. Step 5: Solve for x
    x = 1,635,123,419.28/56,674.80
  6. Step 6: Final answer
    x = 28,850.98

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1.5x scale

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.