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Finding the Fourth Proportional to 19,505.61, 26,917.71 and 11,009.52

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Solution

The fourth proportional to 19,505.61, 26,917.71 and 11,009.52 is: 15,193.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.61 : 26,917.71 = 11,009.52 : x
  2. Step 2: Convert to fraction form
    19,505.61/26,917.71 = 11,009.52/x
  3. Step 3: Cross multiply
    19,505.61x = 26,917.71 × 11,009.52
  4. Step 4: Simplify right side
    19,505.61x = 296,351,066.60
  5. Step 5: Solve for x
    x = 296,351,066.60/19,505.61
  6. Step 6: Final answer
    x = 15,193.12

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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.