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Finding the Fourth Proportional to 17,502.40, 26,236.80 and 5,809.60

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Solution

The fourth proportional to 17,502.40, 26,236.80 and 5,809.60 is: 8,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,502.40 : 26,236.80 = 5,809.60 : x
  2. Step 2: Convert to fraction form
    17,502.40/26,236.80 = 5,809.60/x
  3. Step 3: Cross multiply
    17,502.40x = 26,236.80 × 5,809.60
  4. Step 4: Simplify right side
    17,502.40x = 152,425,313.28
  5. Step 5: Solve for x
    x = 152,425,313.28/17,502.40
  6. Step 6: Final answer
    x = 8,708.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.