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Finding the Fourth Proportional to 31,512.60, 44,195.40 and 31,512.60

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Solution

The fourth proportional to 31,512.60, 44,195.40 and 31,512.60 is: 44,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,512.60 : 44,195.40 = 31,512.60 : x
  2. Step 2: Convert to fraction form
    31,512.60/44,195.40 = 31,512.60/x
  3. Step 3: Cross multiply
    31,512.60x = 44,195.40 × 31,512.60
  4. Step 4: Simplify right side
    31,512.60x = 1,392,711,962.04
  5. Step 5: Solve for x
    x = 1,392,711,962.04/31,512.60
  6. Step 6: Final answer
    x = 44,195.40

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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.