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Finding the Fourth Proportional to 18,958.50, 26,162.73 and 10,575

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Solution

The fourth proportional to 18,958.50, 26,162.73 and 10,575 is: 14,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,958.50 : 26,162.73 = 10,575 : x
  2. Step 2: Convert to fraction form
    18,958.50/26,162.73 = 10,575/x
  3. Step 3: Cross multiply
    18,958.50x = 26,162.73 × 10,575
  4. Step 4: Simplify right side
    18,958.50x = 276,670,869.75
  5. Step 5: Solve for x
    x = 276,670,869.75/18,958.50
  6. Step 6: Final answer
    x = 14,593.50

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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.