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Finding the Fourth Proportional to 31,399.20, 44,017.20 and 31,399.20

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Solution

The fourth proportional to 31,399.20, 44,017.20 and 31,399.20 is: 44,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.20 : 44,017.20 = 31,399.20 : x
  2. Step 2: Convert to fraction form
    31,399.20/44,017.20 = 31,399.20/x
  3. Step 3: Cross multiply
    31,399.20x = 44,017.20 × 31,399.20
  4. Step 4: Simplify right side
    31,399.20x = 1,382,104,866.24
  5. Step 5: Solve for x
    x = 1,382,104,866.24/31,399.20
  6. Step 6: Final answer
    x = 44,017.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.