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Finding the Fourth Proportional to 39,438.80, 59,136.60 and 16,038.80

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Solution

The fourth proportional to 39,438.80, 59,136.60 and 16,038.80 is: 24,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.80 : 59,136.60 = 16,038.80 : x
  2. Step 2: Convert to fraction form
    39,438.80/59,136.60 = 16,038.80/x
  3. Step 3: Cross multiply
    39,438.80x = 59,136.60 × 16,038.80
  4. Step 4: Simplify right side
    39,438.80x = 948,480,100.08
  5. Step 5: Solve for x
    x = 948,480,100.08/39,438.80
  6. Step 6: Final answer
    x = 24,049.42

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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.