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Finding the Fourth Proportional to 18,362.56, 27,506.88 and 8,488.24

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Solution

The fourth proportional to 18,362.56, 27,506.88 and 8,488.24 is: 12,715.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.56 : 27,506.88 = 8,488.24 : x
  2. Step 2: Convert to fraction form
    18,362.56/27,506.88 = 8,488.24/x
  3. Step 3: Cross multiply
    18,362.56x = 27,506.88 × 8,488.24
  4. Step 4: Simplify right side
    18,362.56x = 233,484,999.09
  5. Step 5: Solve for x
    x = 233,484,999.09/18,362.56
  6. Step 6: Final answer
    x = 12,715.27

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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.