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Finding the Fourth Proportional to 47,193.63, 65,128.50 and 25,974.20

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Solution

The fourth proportional to 47,193.63, 65,128.50 and 25,974.20 is: 35,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,193.63 : 65,128.50 = 25,974.20 : x
  2. Step 2: Convert to fraction form
    47,193.63/65,128.50 = 25,974.20/x
  3. Step 3: Cross multiply
    47,193.63x = 65,128.50 × 25,974.20
  4. Step 4: Simplify right side
    47,193.63x = 1,691,660,359.06
  5. Step 5: Solve for x
    x = 1,691,660,359.06/47,193.63
  6. Step 6: Final answer
    x = 35,845.10

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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.