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Finding the Fourth Proportional to 43,809.40, 65,627.70 and 25,319.80

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Solution

The fourth proportional to 43,809.40, 65,627.70 and 25,319.80 is: 37,929.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,809.40 : 65,627.70 = 25,319.80 : x
  2. Step 2: Convert to fraction form
    43,809.40/65,627.70 = 25,319.80/x
  3. Step 3: Cross multiply
    43,809.40x = 65,627.70 × 25,319.80
  4. Step 4: Simplify right side
    43,809.40x = 1,661,680,238.46
  5. Step 5: Solve for x
    x = 1,661,680,238.46/43,809.40
  6. Step 6: Final answer
    x = 37,929.76

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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.