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Finding the Fourth Proportional to 17,767.60, 26,652.08 and 4,619.63

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Solution

The fourth proportional to 17,767.60, 26,652.08 and 4,619.63 is: 6,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,767.60 : 26,652.08 = 4,619.63 : x
  2. Step 2: Convert to fraction form
    17,767.60/26,652.08 = 4,619.63/x
  3. Step 3: Cross multiply
    17,767.60x = 26,652.08 × 4,619.63
  4. Step 4: Simplify right side
    17,767.60x = 123,122,615.07
  5. Step 5: Solve for x
    x = 123,122,615.07/17,767.60
  6. Step 6: Final answer
    x = 6,929.62

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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.