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Finding the Fourth Proportional to 18,330.26, 27,495.50 and 5,182.74

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Solution

The fourth proportional to 18,330.26, 27,495.50 and 5,182.74 is: 7,774.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.26 : 27,495.50 = 5,182.74 : x
  2. Step 2: Convert to fraction form
    18,330.26/27,495.50 = 5,182.74/x
  3. Step 3: Cross multiply
    18,330.26x = 27,495.50 × 5,182.74
  4. Step 4: Simplify right side
    18,330.26x = 142,502,001.76
  5. Step 5: Solve for x
    x = 142,502,001.76/18,330.26
  6. Step 6: Final answer
    x = 7,774.14

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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.