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Finding the Fourth Proportional to 7,000.98, 9,662.67 and 4,018.76

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Solution

The fourth proportional to 7,000.98, 9,662.67 and 4,018.76 is: 5,546.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,000.98 : 9,662.67 = 4,018.76 : x
  2. Step 2: Convert to fraction form
    7,000.98/9,662.67 = 4,018.76/x
  3. Step 3: Cross multiply
    7,000.98x = 9,662.67 × 4,018.76
  4. Step 4: Simplify right side
    7,000.98x = 38,831,907.44
  5. Step 5: Solve for x
    x = 38,831,907.44/7,000.98
  6. Step 6: Final answer
    x = 5,546.64

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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.