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Finding the Fourth Proportional to 10,303.99, 15,455.97 and 3,728.63

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Solution

The fourth proportional to 10,303.99, 15,455.97 and 3,728.63 is: 5,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.99 : 15,455.97 = 3,728.63 : x
  2. Step 2: Convert to fraction form
    10,303.99/15,455.97 = 3,728.63/x
  3. Step 3: Cross multiply
    10,303.99x = 15,455.97 × 3,728.63
  4. Step 4: Simplify right side
    10,303.99x = 57,629,632.06
  5. Step 5: Solve for x
    x = 57,629,632.06/10,303.99
  6. Step 6: Final answer
    x = 5,592.94

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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.