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Finding the Fourth Proportional to 26,656.88, 39,973.66 and 14,173.88

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Solution

The fourth proportional to 26,656.88, 39,973.66 and 14,173.88 is: 21,254.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,656.88 : 39,973.66 = 14,173.88 : x
  2. Step 2: Convert to fraction form
    26,656.88/39,973.66 = 14,173.88/x
  3. Step 3: Cross multiply
    26,656.88x = 39,973.66 × 14,173.88
  4. Step 4: Simplify right side
    26,656.88x = 566,581,624.70
  5. Step 5: Solve for x
    x = 566,581,624.70/26,656.88
  6. Step 6: Final answer
    x = 21,254.62

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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.