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Finding the Fourth Proportional to 16,857.51, 25,291.12 and 5,172.45

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Solution

The fourth proportional to 16,857.51, 25,291.12 and 5,172.45 is: 7,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.51 : 25,291.12 = 5,172.45 : x
  2. Step 2: Convert to fraction form
    16,857.51/25,291.12 = 5,172.45/x
  3. Step 3: Cross multiply
    16,857.51x = 25,291.12 × 5,172.45
  4. Step 4: Simplify right side
    16,857.51x = 130,817,053.64
  5. Step 5: Solve for x
    x = 130,817,053.64/16,857.51
  6. Step 6: Final answer
    x = 7,760.16

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