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Finding the Fourth Proportional to 47,953.80, 71,865.61 and 25,458.80

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Solution

The fourth proportional to 47,953.80, 71,865.61 and 25,458.80 is: 38,153.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,953.80 : 71,865.61 = 25,458.80 : x
  2. Step 2: Convert to fraction form
    47,953.80/71,865.61 = 25,458.80/x
  3. Step 3: Cross multiply
    47,953.80x = 71,865.61 × 25,458.80
  4. Step 4: Simplify right side
    47,953.80x = 1,829,612,012.20
  5. Step 5: Solve for x
    x = 1,829,612,012.20/47,953.80
  6. Step 6: Final answer
    x = 38,153.64

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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.