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Finding the Fourth Proportional to 53,039.56, 79,595.79 and 34,311.55

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Solution

The fourth proportional to 53,039.56, 79,595.79 and 34,311.55 is: 51,490.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,039.56 : 79,595.79 = 34,311.55 : x
  2. Step 2: Convert to fraction form
    53,039.56/79,595.79 = 34,311.55/x
  3. Step 3: Cross multiply
    53,039.56x = 79,595.79 × 34,311.55
  4. Step 4: Simplify right side
    53,039.56x = 2,731,054,928.37
  5. Step 5: Solve for x
    x = 2,731,054,928.37/53,039.56
  6. Step 6: Final answer
    x = 51,490.90

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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.