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Finding the Fourth Proportional to 16,908.60, 25,349.16 and 7,055.22

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Solution

The fourth proportional to 16,908.60, 25,349.16 and 7,055.22 is: 10,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.60 : 25,349.16 = 7,055.22 : x
  2. Step 2: Convert to fraction form
    16,908.60/25,349.16 = 7,055.22/x
  3. Step 3: Cross multiply
    16,908.60x = 25,349.16 × 7,055.22
  4. Step 4: Simplify right side
    16,908.60x = 178,843,900.62
  5. Step 5: Solve for x
    x = 178,843,900.62/16,908.60
  6. Step 6: Final answer
    x = 10,577.10

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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.