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Finding the Fourth Proportional to 52,471.55, 78,730.56 and 27,505.67

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Solution

The fourth proportional to 52,471.55, 78,730.56 and 27,505.67 is: 41,270.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,471.55 : 78,730.56 = 27,505.67 : x
  2. Step 2: Convert to fraction form
    52,471.55/78,730.56 = 27,505.67/x
  3. Step 3: Cross multiply
    52,471.55x = 78,730.56 × 27,505.67
  4. Step 4: Simplify right side
    52,471.55x = 2,165,536,408.62
  5. Step 5: Solve for x
    x = 2,165,536,408.62/52,471.55
  6. Step 6: Final answer
    x = 41,270.68

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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.