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Finding the Fourth Proportional to 7,622.51, 11,433.62 and 3,005.51

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Solution

The fourth proportional to 7,622.51, 11,433.62 and 3,005.51 is: 4,508.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,622.51 : 11,433.62 = 3,005.51 : x
  2. Step 2: Convert to fraction form
    7,622.51/11,433.62 = 3,005.51/x
  3. Step 3: Cross multiply
    7,622.51x = 11,433.62 × 3,005.51
  4. Step 4: Simplify right side
    7,622.51x = 34,363,809.59
  5. Step 5: Solve for x
    x = 34,363,809.59/7,622.51
  6. Step 6: Final answer
    x = 4,508.20

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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.