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Finding the Fourth Proportional to 5,245.45, 7,868.18 and 5,017.67

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Solution

The fourth proportional to 5,245.45, 7,868.18 and 5,017.67 is: 7,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.45 : 7,868.18 = 5,017.67 : x
  2. Step 2: Convert to fraction form
    5,245.45/7,868.18 = 5,017.67/x
  3. Step 3: Cross multiply
    5,245.45x = 7,868.18 × 5,017.67
  4. Step 4: Simplify right side
    5,245.45x = 39,479,925.32
  5. Step 5: Solve for x
    x = 39,479,925.32/5,245.45
  6. Step 6: Final answer
    x = 7,526.51

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Double scale
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Similar ratio
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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.