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Finding the Fourth Proportional to 18,279.40, 27,421.98 and 6,595.48

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Solution

The fourth proportional to 18,279.40, 27,421.98 and 6,595.48 is: 9,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.40 : 27,421.98 = 6,595.48 : x
  2. Step 2: Convert to fraction form
    18,279.40/27,421.98 = 6,595.48/x
  3. Step 3: Cross multiply
    18,279.40x = 27,421.98 × 6,595.48
  4. Step 4: Simplify right side
    18,279.40x = 180,861,120.65
  5. Step 5: Solve for x
    x = 180,861,120.65/18,279.40
  6. Step 6: Final answer
    x = 9,894.26

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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.