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Finding the Fourth Proportional to 38,706.70, 53,372.64 and 25,252.60

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Solution

The fourth proportional to 38,706.70, 53,372.64 and 25,252.60 is: 34,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.70 : 53,372.64 = 25,252.60 : x
  2. Step 2: Convert to fraction form
    38,706.70/53,372.64 = 25,252.60/x
  3. Step 3: Cross multiply
    38,706.70x = 53,372.64 × 25,252.60
  4. Step 4: Simplify right side
    38,706.70x = 1,347,797,928.86
  5. Step 5: Solve for x
    x = 1,347,797,928.86/38,706.70
  6. Step 6: Final answer
    x = 34,820.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.