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Finding the Fourth Proportional to 38,609.70, 57,914.55 and 10,907.70

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Solution

The fourth proportional to 38,609.70, 57,914.55 and 10,907.70 is: 16,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,609.70 : 57,914.55 = 10,907.70 : x
  2. Step 2: Convert to fraction form
    38,609.70/57,914.55 = 10,907.70/x
  3. Step 3: Cross multiply
    38,609.70x = 57,914.55 × 10,907.70
  4. Step 4: Simplify right side
    38,609.70x = 631,714,537.04
  5. Step 5: Solve for x
    x = 631,714,537.04/38,609.70
  6. Step 6: Final answer
    x = 16,361.55

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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.