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Finding the Fourth Proportional to 56,861.85, 78,443.99 and 32,974.68

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Solution

The fourth proportional to 56,861.85, 78,443.99 and 32,974.68 is: 45,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,861.85 : 78,443.99 = 32,974.68 : x
  2. Step 2: Convert to fraction form
    56,861.85/78,443.99 = 32,974.68/x
  3. Step 3: Cross multiply
    56,861.85x = 78,443.99 × 32,974.68
  4. Step 4: Simplify right side
    56,861.85x = 2,586,665,303.30
  5. Step 5: Solve for x
    x = 2,586,665,303.30/56,861.85
  6. Step 6: Final answer
    x = 45,490.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.