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Finding the Fourth Proportional to 23,609.49, 32,580.90 and 12,998.90

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Solution

The fourth proportional to 23,609.49, 32,580.90 and 12,998.90 is: 17,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,609.49 : 32,580.90 = 12,998.90 : x
  2. Step 2: Convert to fraction form
    23,609.49/32,580.90 = 12,998.90/x
  3. Step 3: Cross multiply
    23,609.49x = 32,580.90 × 12,998.90
  4. Step 4: Simplify right side
    23,609.49x = 423,515,698.11
  5. Step 5: Solve for x
    x = 423,515,698.11/23,609.49
  6. Step 6: Final answer
    x = 17,938.37

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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.