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Finding the Fourth Proportional to 26,898.50, 37,119.93 and 15,122.50

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Solution

The fourth proportional to 26,898.50, 37,119.93 and 15,122.50 is: 20,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,898.50 : 37,119.93 = 15,122.50 : x
  2. Step 2: Convert to fraction form
    26,898.50/37,119.93 = 15,122.50/x
  3. Step 3: Cross multiply
    26,898.50x = 37,119.93 × 15,122.50
  4. Step 4: Simplify right side
    26,898.50x = 561,346,141.43
  5. Step 5: Solve for x
    x = 561,346,141.43/26,898.50
  6. Step 6: Final answer
    x = 20,869.05

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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.