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Finding the Fourth Proportional to 23,239.69, 32,070.97 and 12,629.32

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Solution

The fourth proportional to 23,239.69, 32,070.97 and 12,629.32 is: 17,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,239.69 : 32,070.97 = 12,629.32 : x
  2. Step 2: Convert to fraction form
    23,239.69/32,070.97 = 12,629.32/x
  3. Step 3: Cross multiply
    23,239.69x = 32,070.97 × 12,629.32
  4. Step 4: Simplify right side
    23,239.69x = 405,034,542.84
  5. Step 5: Solve for x
    x = 405,034,542.84/23,239.69
  6. Step 6: Final answer
    x = 17,428.57

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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.