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Finding the Fourth Proportional to 7,900.87, 10,903.26 and 4,364.68

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Solution

The fourth proportional to 7,900.87, 10,903.26 and 4,364.68 is: 6,023.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.87 : 10,903.26 = 4,364.68 : x
  2. Step 2: Convert to fraction form
    7,900.87/10,903.26 = 4,364.68/x
  3. Step 3: Cross multiply
    7,900.87x = 10,903.26 × 4,364.68
  4. Step 4: Simplify right side
    7,900.87x = 47,589,240.86
  5. Step 5: Solve for x
    x = 47,589,240.86/7,900.87
  6. Step 6: Final answer
    x = 6,023.29

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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.