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Finding the Fourth Proportional to 53,165.70, 79,675.65 and 43,324.20

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Solution

The fourth proportional to 53,165.70, 79,675.65 and 43,324.20 is: 64,926.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,165.70 : 79,675.65 = 43,324.20 : x
  2. Step 2: Convert to fraction form
    53,165.70/79,675.65 = 43,324.20/x
  3. Step 3: Cross multiply
    53,165.70x = 79,675.65 × 43,324.20
  4. Step 4: Simplify right side
    53,165.70x = 3,451,883,795.73
  5. Step 5: Solve for x
    x = 3,451,883,795.73/53,165.70
  6. Step 6: Final answer
    x = 64,926.89

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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.