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Finding the Fourth Proportional to 5,306.55, 7,999.55 and 4,949.75

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Solution

The fourth proportional to 5,306.55, 7,999.55 and 4,949.75 is: 7,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,306.55 : 7,999.55 = 4,949.75 : x
  2. Step 2: Convert to fraction form
    5,306.55/7,999.55 = 4,949.75/x
  3. Step 3: Cross multiply
    5,306.55x = 7,999.55 × 4,949.75
  4. Step 4: Simplify right side
    5,306.55x = 39,595,707.87
  5. Step 5: Solve for x
    x = 39,595,707.87/5,306.55
  6. Step 6: Final answer
    x = 7,461.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.