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Finding the Fourth Proportional to 30,955.91, 46,434.69 and 8,766.99

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Solution

The fourth proportional to 30,955.91, 46,434.69 and 8,766.99 is: 13,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.91 : 46,434.69 = 8,766.99 : x
  2. Step 2: Convert to fraction form
    30,955.91/46,434.69 = 8,766.99/x
  3. Step 3: Cross multiply
    30,955.91x = 46,434.69 × 8,766.99
  4. Step 4: Simplify right side
    30,955.91x = 407,092,462.88
  5. Step 5: Solve for x
    x = 407,092,462.88/30,955.91
  6. Step 6: Final answer
    x = 13,150.72

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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.