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Finding the Fourth Proportional to 31,295.80, 46,938.79 and 10,235.67

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Solution

The fourth proportional to 31,295.80, 46,938.79 and 10,235.67 is: 15,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,295.80 : 46,938.79 = 10,235.67 : x
  2. Step 2: Convert to fraction form
    31,295.80/46,938.79 = 10,235.67/x
  3. Step 3: Cross multiply
    31,295.80x = 46,938.79 × 10,235.67
  4. Step 4: Simplify right side
    31,295.80x = 480,449,964.64
  5. Step 5: Solve for x
    x = 480,449,964.64/31,295.80
  6. Step 6: Final answer
    x = 15,351.90

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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.