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Finding the Fourth Proportional to 39,438.52, 59,157.78 and 23,011

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Solution

The fourth proportional to 39,438.52, 59,157.78 and 23,011 is: 34,516.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.52 : 59,157.78 = 23,011 : x
  2. Step 2: Convert to fraction form
    39,438.52/59,157.78 = 23,011/x
  3. Step 3: Cross multiply
    39,438.52x = 59,157.78 × 23,011
  4. Step 4: Simplify right side
    39,438.52x = 1,361,279,675.58
  5. Step 5: Solve for x
    x = 1,361,279,675.58/39,438.52
  6. Step 6: Final answer
    x = 34,516.50

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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.