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Finding the Fourth Proportional to 18,436.35, 27,635.63 and 7,328.01

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Solution

The fourth proportional to 18,436.35, 27,635.63 and 7,328.01 is: 10,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436.35 : 27,635.63 = 7,328.01 : x
  2. Step 2: Convert to fraction form
    18,436.35/27,635.63 = 7,328.01/x
  3. Step 3: Cross multiply
    18,436.35x = 27,635.63 × 7,328.01
  4. Step 4: Simplify right side
    18,436.35x = 202,514,136.36
  5. Step 5: Solve for x
    x = 202,514,136.36/18,436.35
  6. Step 6: Final answer
    x = 10,984.50

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1.5x scale

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.