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Finding the Fourth Proportional to 32,190.40, 43,318.80 and 32,190.40

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Solution

The fourth proportional to 32,190.40, 43,318.80 and 32,190.40 is: 43,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,190.40 : 43,318.80 = 32,190.40 : x
  2. Step 2: Convert to fraction form
    32,190.40/43,318.80 = 32,190.40/x
  3. Step 3: Cross multiply
    32,190.40x = 43,318.80 × 32,190.40
  4. Step 4: Simplify right side
    32,190.40x = 1,394,449,499.52
  5. Step 5: Solve for x
    x = 1,394,449,499.52/32,190.40
  6. Step 6: Final answer
    x = 43,318.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.