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Finding the Fourth Proportional to 71,642.09, 107,477.01 and 27,265.43

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Solution

The fourth proportional to 71,642.09, 107,477.01 and 27,265.43 is: 40,903.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,642.09 : 107,477.01 = 27,265.43 : x
  2. Step 2: Convert to fraction form
    71,642.09/107,477.01 = 27,265.43/x
  3. Step 3: Cross multiply
    71,642.09x = 107,477.01 × 27,265.43
  4. Step 4: Simplify right side
    71,642.09x = 2,930,406,892.76
  5. Step 5: Solve for x
    x = 2,930,406,892.76/71,642.09
  6. Step 6: Final answer
    x = 40,903.43

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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.