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Finding the Fourth Proportional to 71,666.45, 107,546.45 and 27,293.63

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Solution

The fourth proportional to 71,666.45, 107,546.45 and 27,293.63 is: 40,958.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.45 : 107,546.45 = 27,293.63 : x
  2. Step 2: Convert to fraction form
    71,666.45/107,546.45 = 27,293.63/x
  3. Step 3: Cross multiply
    71,666.45x = 107,546.45 × 27,293.63
  4. Step 4: Simplify right side
    71,666.45x = 2,935,333,146.51
  5. Step 5: Solve for x
    x = 2,935,333,146.51/71,666.45
  6. Step 6: Final answer
    x = 40,958.26

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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.