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Finding the Fourth Proportional to 18,445.65, 27,675.09 and 9,556.71

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Solution

The fourth proportional to 18,445.65, 27,675.09 and 9,556.71 is: 14,338.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.65 : 27,675.09 = 9,556.71 : x
  2. Step 2: Convert to fraction form
    18,445.65/27,675.09 = 9,556.71/x
  3. Step 3: Cross multiply
    18,445.65x = 27,675.09 × 9,556.71
  4. Step 4: Simplify right side
    18,445.65x = 264,482,809.35
  5. Step 5: Solve for x
    x = 264,482,809.35/18,445.65
  6. Step 6: Final answer
    x = 14,338.49

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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.