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Finding the Fourth Proportional to 40,165.67, 55,415.95 and 23,167.63

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Solution

The fourth proportional to 40,165.67, 55,415.95 and 23,167.63 is: 31,964.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,165.67 : 55,415.95 = 23,167.63 : x
  2. Step 2: Convert to fraction form
    40,165.67/55,415.95 = 23,167.63/x
  3. Step 3: Cross multiply
    40,165.67x = 55,415.95 × 23,167.63
  4. Step 4: Simplify right side
    40,165.67x = 1,283,856,225.70
  5. Step 5: Solve for x
    x = 1,283,856,225.70/40,165.67
  6. Step 6: Final answer
    x = 31,964.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.