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Finding the Fourth Proportional to 29,580.50, 40,821.09 and 17,012.54

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Solution

The fourth proportional to 29,580.50, 40,821.09 and 17,012.54 is: 23,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,580.50 : 40,821.09 = 17,012.54 : x
  2. Step 2: Convert to fraction form
    29,580.50/40,821.09 = 17,012.54/x
  3. Step 3: Cross multiply
    29,580.50x = 40,821.09 × 17,012.54
  4. Step 4: Simplify right side
    29,580.50x = 694,470,426.47
  5. Step 5: Solve for x
    x = 694,470,426.47/29,580.50
  6. Step 6: Final answer
    x = 23,477.31

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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.