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Finding the Fourth Proportional to 27,208.79, 40,813.38 and 7,488.43

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Solution

The fourth proportional to 27,208.79, 40,813.38 and 7,488.43 is: 11,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,208.79 : 40,813.38 = 7,488.43 : x
  2. Step 2: Convert to fraction form
    27,208.79/40,813.38 = 7,488.43/x
  3. Step 3: Cross multiply
    27,208.79x = 40,813.38 × 7,488.43
  4. Step 4: Simplify right side
    27,208.79x = 305,628,037.16
  5. Step 5: Solve for x
    x = 305,628,037.16/27,208.79
  6. Step 6: Final answer
    x = 11,232.70

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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.