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Finding the Fourth Proportional to 47,205.42, 65,145.03 and 25,986.30

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Solution

The fourth proportional to 47,205.42, 65,145.03 and 25,986.30 is: 35,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,205.42 : 65,145.03 = 25,986.30 : x
  2. Step 2: Convert to fraction form
    47,205.42/65,145.03 = 25,986.30/x
  3. Step 3: Cross multiply
    47,205.42x = 65,145.03 × 25,986.30
  4. Step 4: Simplify right side
    47,205.42x = 1,692,878,293.09
  5. Step 5: Solve for x
    x = 1,692,878,293.09/47,205.42
  6. Step 6: Final answer
    x = 35,861.95

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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.