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Finding the Fourth Proportional to 27,248.94, 37,619.64 and 20,863.98

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Solution

The fourth proportional to 27,248.94, 37,619.64 and 20,863.98 is: 28,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,248.94 : 37,619.64 = 20,863.98 : x
  2. Step 2: Convert to fraction form
    27,248.94/37,619.64 = 20,863.98/x
  3. Step 3: Cross multiply
    27,248.94x = 37,619.64 × 20,863.98
  4. Step 4: Simplify right side
    27,248.94x = 784,895,416.57
  5. Step 5: Solve for x
    x = 784,895,416.57/27,248.94
  6. Step 6: Final answer
    x = 28,804.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.