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Finding the Fourth Proportional to 32,958.50, 45,487.17 and 18,812.25

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Solution

The fourth proportional to 32,958.50, 45,487.17 and 18,812.25 is: 25,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,958.50 : 45,487.17 = 18,812.25 : x
  2. Step 2: Convert to fraction form
    32,958.50/45,487.17 = 18,812.25/x
  3. Step 3: Cross multiply
    32,958.50x = 45,487.17 × 18,812.25
  4. Step 4: Simplify right side
    32,958.50x = 855,716,013.83
  5. Step 5: Solve for x
    x = 855,716,013.83/32,958.50
  6. Step 6: Final answer
    x = 25,963.44

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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.