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Finding the Fourth Proportional to 8,622.32, 11,900.08 and 5,267.06

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Solution

The fourth proportional to 8,622.32, 11,900.08 and 5,267.06 is: 7,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.32 : 11,900.08 = 5,267.06 : x
  2. Step 2: Convert to fraction form
    8,622.32/11,900.08 = 5,267.06/x
  3. Step 3: Cross multiply
    8,622.32x = 11,900.08 × 5,267.06
  4. Step 4: Simplify right side
    8,622.32x = 62,678,427.07
  5. Step 5: Solve for x
    x = 62,678,427.07/8,622.32
  6. Step 6: Final answer
    x = 7,269.33

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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.