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Finding the Fourth Proportional to 30,955.35, 46,399.89 and 14,295.99

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Solution

The fourth proportional to 30,955.35, 46,399.89 and 14,295.99 is: 21,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,955.35 : 46,399.89 = 14,295.99 : x
  2. Step 2: Convert to fraction form
    30,955.35/46,399.89 = 14,295.99/x
  3. Step 3: Cross multiply
    30,955.35x = 46,399.89 × 14,295.99
  4. Step 4: Simplify right side
    30,955.35x = 663,332,363.44
  5. Step 5: Solve for x
    x = 663,332,363.44/30,955.35
  6. Step 6: Final answer
    x = 21,428.68

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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.