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Finding the Fourth Proportional to 17,690.56, 26,528.05 and 9,368.63

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Solution

The fourth proportional to 17,690.56, 26,528.05 and 9,368.63 is: 14,048.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,690.56 : 26,528.05 = 9,368.63 : x
  2. Step 2: Convert to fraction form
    17,690.56/26,528.05 = 9,368.63/x
  3. Step 3: Cross multiply
    17,690.56x = 26,528.05 × 9,368.63
  4. Step 4: Simplify right side
    17,690.56x = 248,531,410.92
  5. Step 5: Solve for x
    x = 248,531,410.92/17,690.56
  6. Step 6: Final answer
    x = 14,048.82

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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.