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Finding the Fourth Proportional to 19,238, 26,548.44 and 10,854.32

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Solution

The fourth proportional to 19,238, 26,548.44 and 10,854.32 is: 14,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238 : 26,548.44 = 10,854.32 : x
  2. Step 2: Convert to fraction form
    19,238/26,548.44 = 10,854.32/x
  3. Step 3: Cross multiply
    19,238x = 26,548.44 × 10,854.32
  4. Step 4: Simplify right side
    19,238x = 288,165,263.26
  5. Step 5: Solve for x
    x = 288,165,263.26/19,238
  6. Step 6: Final answer
    x = 14,978.96

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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.