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Finding the Fourth Proportional to 31,407.20, 44,028.40 and 31,407.20

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Solution

The fourth proportional to 31,407.20, 44,028.40 and 31,407.20 is: 44,028.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.20 : 44,028.40 = 31,407.20 : x
  2. Step 2: Convert to fraction form
    31,407.20/44,028.40 = 31,407.20/x
  3. Step 3: Cross multiply
    31,407.20x = 44,028.40 × 31,407.20
  4. Step 4: Simplify right side
    31,407.20x = 1,382,808,764.48
  5. Step 5: Solve for x
    x = 1,382,808,764.48/31,407.20
  6. Step 6: Final answer
    x = 44,028.40

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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.