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Finding the Fourth Proportional to 32,980.50, 45,513.09 and 18,076.50

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Solution

The fourth proportional to 32,980.50, 45,513.09 and 18,076.50 is: 24,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,980.50 : 45,513.09 = 18,076.50 : x
  2. Step 2: Convert to fraction form
    32,980.50/45,513.09 = 18,076.50/x
  3. Step 3: Cross multiply
    32,980.50x = 45,513.09 × 18,076.50
  4. Step 4: Simplify right side
    32,980.50x = 822,717,371.39
  5. Step 5: Solve for x
    x = 822,717,371.39/32,980.50
  6. Step 6: Final answer
    x = 24,945.57

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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.