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Finding the Fourth Proportional to 52,782.44, 79,185.18 and 17,721.17

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Solution

The fourth proportional to 52,782.44, 79,185.18 and 17,721.17 is: 26,585.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,782.44 : 79,185.18 = 17,721.17 : x
  2. Step 2: Convert to fraction form
    52,782.44/79,185.18 = 17,721.17/x
  3. Step 3: Cross multiply
    52,782.44x = 79,185.18 × 17,721.17
  4. Step 4: Simplify right side
    52,782.44x = 1,403,254,036.26
  5. Step 5: Solve for x
    x = 1,403,254,036.26/52,782.44
  6. Step 6: Final answer
    x = 26,585.62

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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.