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Finding the Fourth Proportional to 6,072.70, 9,111.93 and 4,776.70

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Solution

The fourth proportional to 6,072.70, 9,111.93 and 4,776.70 is: 7,167.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,072.70 : 9,111.93 = 4,776.70 : x
  2. Step 2: Convert to fraction form
    6,072.70/9,111.93 = 4,776.70/x
  3. Step 3: Cross multiply
    6,072.70x = 9,111.93 × 4,776.70
  4. Step 4: Simplify right side
    6,072.70x = 43,524,956.03
  5. Step 5: Solve for x
    x = 43,524,956.03/6,072.70
  6. Step 6: Final answer
    x = 7,167.32

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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.