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Finding the Fourth Proportional to 27,018.40, 40,529.65 and 7,296.68

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Solution

The fourth proportional to 27,018.40, 40,529.65 and 7,296.68 is: 10,945.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,018.40 : 40,529.65 = 7,296.68 : x
  2. Step 2: Convert to fraction form
    27,018.40/40,529.65 = 7,296.68/x
  3. Step 3: Cross multiply
    27,018.40x = 40,529.65 × 7,296.68
  4. Step 4: Simplify right side
    27,018.40x = 295,731,886.56
  5. Step 5: Solve for x
    x = 295,731,886.56/27,018.40
  6. Step 6: Final answer
    x = 10,945.57

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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.