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Finding the Fourth Proportional to 31,198.80, 46,798.20 and 31,004.40

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Solution

The fourth proportional to 31,198.80, 46,798.20 and 31,004.40 is: 46,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,198.80 : 46,798.20 = 31,004.40 : x
  2. Step 2: Convert to fraction form
    31,198.80/46,798.20 = 31,004.40/x
  3. Step 3: Cross multiply
    31,198.80x = 46,798.20 × 31,004.40
  4. Step 4: Simplify right side
    31,198.80x = 1,450,950,112.08
  5. Step 5: Solve for x
    x = 1,450,950,112.08/31,198.80
  6. Step 6: Final answer
    x = 46,506.60

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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.