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Finding the Fourth Proportional to 72,257.55, 108,384.30 and 32,814.60

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Solution

The fourth proportional to 72,257.55, 108,384.30 and 32,814.60 is: 49,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,257.55 : 108,384.30 = 32,814.60 : x
  2. Step 2: Convert to fraction form
    72,257.55/108,384.30 = 32,814.60/x
  3. Step 3: Cross multiply
    72,257.55x = 108,384.30 × 32,814.60
  4. Step 4: Simplify right side
    72,257.55x = 3,556,587,450.78
  5. Step 5: Solve for x
    x = 3,556,587,450.78/72,257.55
  6. Step 6: Final answer
    x = 49,220.98

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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.