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Finding the Fourth Proportional to 17,720.66, 26,580.96 and 4,573

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Solution

The fourth proportional to 17,720.66, 26,580.96 and 4,573 is: 6,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720.66 : 26,580.96 = 4,573 : x
  2. Step 2: Convert to fraction form
    17,720.66/26,580.96 = 4,573/x
  3. Step 3: Cross multiply
    17,720.66x = 26,580.96 × 4,573
  4. Step 4: Simplify right side
    17,720.66x = 121,554,730.08
  5. Step 5: Solve for x
    x = 121,554,730.08/17,720.66
  6. Step 6: Final answer
    x = 6,859.49

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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.