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Finding the Fourth Proportional to 18,322.56, 27,460.80 and 9,072

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Solution

The fourth proportional to 18,322.56, 27,460.80 and 9,072 is: 13,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.56 : 27,460.80 = 9,072 : x
  2. Step 2: Convert to fraction form
    18,322.56/27,460.80 = 9,072/x
  3. Step 3: Cross multiply
    18,322.56x = 27,460.80 × 9,072
  4. Step 4: Simplify right side
    18,322.56x = 249,124,377.60
  5. Step 5: Solve for x
    x = 249,124,377.60/18,322.56
  6. Step 6: Final answer
    x = 13,596.59

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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.