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Finding the Fourth Proportional to 30,086.15, 45,129.08 and 7,596.87

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Solution

The fourth proportional to 30,086.15, 45,129.08 and 7,596.87 is: 11,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,086.15 : 45,129.08 = 7,596.87 : x
  2. Step 2: Convert to fraction form
    30,086.15/45,129.08 = 7,596.87/x
  3. Step 3: Cross multiply
    30,086.15x = 45,129.08 × 7,596.87
  4. Step 4: Simplify right side
    30,086.15x = 342,839,716.00
  5. Step 5: Solve for x
    x = 342,839,716.00/30,086.15
  6. Step 6: Final answer
    x = 11,395.27

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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.