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Finding the Fourth Proportional to 11,951.79, 17,925.26 and 11,359.01

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Solution

The fourth proportional to 11,951.79, 17,925.26 and 11,359.01 is: 17,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.79 : 17,925.26 = 11,359.01 : x
  2. Step 2: Convert to fraction form
    11,951.79/17,925.26 = 11,359.01/x
  3. Step 3: Cross multiply
    11,951.79x = 17,925.26 × 11,359.01
  4. Step 4: Simplify right side
    11,951.79x = 203,613,061.17
  5. Step 5: Solve for x
    x = 203,613,061.17/11,951.79
  6. Step 6: Final answer
    x = 17,036.20

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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.