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Finding the Fourth Proportional to 71,665.41, 107,498.12 and 27,312.69

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Solution

The fourth proportional to 71,665.41, 107,498.12 and 27,312.69 is: 40,969.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,665.41 : 107,498.12 = 27,312.69 : x
  2. Step 2: Convert to fraction form
    71,665.41/107,498.12 = 27,312.69/x
  3. Step 3: Cross multiply
    71,665.41x = 107,498.12 × 27,312.69
  4. Step 4: Simplify right side
    71,665.41x = 2,936,062,827.14
  5. Step 5: Solve for x
    x = 2,936,062,827.14/71,665.41
  6. Step 6: Final answer
    x = 40,969.04

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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.