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Finding the Fourth Proportional to 43,858.80, 65,596.20 and 39,212.40

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Solution

The fourth proportional to 43,858.80, 65,596.20 and 39,212.40 is: 58,646.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,858.80 : 65,596.20 = 39,212.40 : x
  2. Step 2: Convert to fraction form
    43,858.80/65,596.20 = 39,212.40/x
  3. Step 3: Cross multiply
    43,858.80x = 65,596.20 × 39,212.40
  4. Step 4: Simplify right side
    43,858.80x = 2,572,184,432.88
  5. Step 5: Solve for x
    x = 2,572,184,432.88/43,858.80
  6. Step 6: Final answer
    x = 58,646.94

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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.