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Finding the Fourth Proportional to 19,055.68, 26,296.80 and 10,672

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Solution

The fourth proportional to 19,055.68, 26,296.80 and 10,672 is: 14,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055.68 : 26,296.80 = 10,672 : x
  2. Step 2: Convert to fraction form
    19,055.68/26,296.80 = 10,672/x
  3. Step 3: Cross multiply
    19,055.68x = 26,296.80 × 10,672
  4. Step 4: Simplify right side
    19,055.68x = 280,639,449.60
  5. Step 5: Solve for x
    x = 280,639,449.60/19,055.68
  6. Step 6: Final answer
    x = 14,727.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.