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Finding the Fourth Proportional to 9,679.72, 14,485.02 and 9,028.84

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Solution

The fourth proportional to 9,679.72, 14,485.02 and 9,028.84 is: 13,511.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,679.72 : 14,485.02 = 9,028.84 : x
  2. Step 2: Convert to fraction form
    9,679.72/14,485.02 = 9,028.84/x
  3. Step 3: Cross multiply
    9,679.72x = 14,485.02 × 9,028.84
  4. Step 4: Simplify right side
    9,679.72x = 130,782,927.98
  5. Step 5: Solve for x
    x = 130,782,927.98/9,679.72
  6. Step 6: Final answer
    x = 13,511.02

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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.