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Finding the Fourth Proportional to 18,114.60, 24,996.42 and 10,155

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Solution

The fourth proportional to 18,114.60, 24,996.42 and 10,155 is: 14,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.60 : 24,996.42 = 10,155 : x
  2. Step 2: Convert to fraction form
    18,114.60/24,996.42 = 10,155/x
  3. Step 3: Cross multiply
    18,114.60x = 24,996.42 × 10,155
  4. Step 4: Simplify right side
    18,114.60x = 253,838,645.10
  5. Step 5: Solve for x
    x = 253,838,645.10/18,114.60
  6. Step 6: Final answer
    x = 14,012.93

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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.