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Finding the Fourth Proportional to 7,994.63, 11,032.57 and 4,639.41

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Solution

The fourth proportional to 7,994.63, 11,032.57 and 4,639.41 is: 6,402.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,994.63 : 11,032.57 = 4,639.41 : x
  2. Step 2: Convert to fraction form
    7,994.63/11,032.57 = 4,639.41/x
  3. Step 3: Cross multiply
    7,994.63x = 11,032.57 × 4,639.41
  4. Step 4: Simplify right side
    7,994.63x = 51,184,621.38
  5. Step 5: Solve for x
    x = 51,184,621.38/7,994.63
  6. Step 6: Final answer
    x = 6,402.37

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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.