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Finding the Fourth Proportional to 7,900.99, 10,903.03 and 4,364.12

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Solution

The fourth proportional to 7,900.99, 10,903.03 and 4,364.12 is: 6,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.99 : 10,903.03 = 4,364.12 : x
  2. Step 2: Convert to fraction form
    7,900.99/10,903.03 = 4,364.12/x
  3. Step 3: Cross multiply
    7,900.99x = 10,903.03 × 4,364.12
  4. Step 4: Simplify right side
    7,900.99x = 47,582,131.28
  5. Step 5: Solve for x
    x = 47,582,131.28/7,900.99
  6. Step 6: Final answer
    x = 6,022.30

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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.