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Finding the Fourth Proportional to 30,868.99, 46,303.40 and 7,495.43

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Solution

The fourth proportional to 30,868.99, 46,303.40 and 7,495.43 is: 11,243.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,868.99 : 46,303.40 = 7,495.43 : x
  2. Step 2: Convert to fraction form
    30,868.99/46,303.40 = 7,495.43/x
  3. Step 3: Cross multiply
    30,868.99x = 46,303.40 × 7,495.43
  4. Step 4: Simplify right side
    30,868.99x = 347,063,913.85
  5. Step 5: Solve for x
    x = 347,063,913.85/30,868.99
  6. Step 6: Final answer
    x = 11,243.12

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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.