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Finding the Fourth Proportional to 7,664.63, 11,488.77 and 4,370.63

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Solution

The fourth proportional to 7,664.63, 11,488.77 and 4,370.63 is: 6,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.63 : 11,488.77 = 4,370.63 : x
  2. Step 2: Convert to fraction form
    7,664.63/11,488.77 = 4,370.63/x
  3. Step 3: Cross multiply
    7,664.63x = 11,488.77 × 4,370.63
  4. Step 4: Simplify right side
    7,664.63x = 50,213,162.83
  5. Step 5: Solve for x
    x = 50,213,162.83/7,664.63
  6. Step 6: Final answer
    x = 6,551.28

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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.