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Finding the Fourth Proportional to 53,343.40, 79,942.20 and 35,523.40

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Solution

The fourth proportional to 53,343.40, 79,942.20 and 35,523.40 is: 53,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,343.40 : 79,942.20 = 35,523.40 : x
  2. Step 2: Convert to fraction form
    53,343.40/79,942.20 = 35,523.40/x
  3. Step 3: Cross multiply
    53,343.40x = 79,942.20 × 35,523.40
  4. Step 4: Simplify right side
    53,343.40x = 2,839,818,747.48
  5. Step 5: Solve for x
    x = 2,839,818,747.48/53,343.40
  6. Step 6: Final answer
    x = 53,236.55

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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.