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Finding the Fourth Proportional to 45,231.70, 67,835.40 and 15,658.60

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Solution

The fourth proportional to 45,231.70, 67,835.40 and 15,658.60 is: 23,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,231.70 : 67,835.40 = 15,658.60 : x
  2. Step 2: Convert to fraction form
    45,231.70/67,835.40 = 15,658.60/x
  3. Step 3: Cross multiply
    45,231.70x = 67,835.40 × 15,658.60
  4. Step 4: Simplify right side
    45,231.70x = 1,062,207,394.44
  5. Step 5: Solve for x
    x = 1,062,207,394.44/45,231.70
  6. Step 6: Final answer
    x = 23,483.69

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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.