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Finding the Fourth Proportional to 27,405.56, 37,819.44 and 14,830.28

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Solution

The fourth proportional to 27,405.56, 37,819.44 and 14,830.28 is: 20,465.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,405.56 : 37,819.44 = 14,830.28 : x
  2. Step 2: Convert to fraction form
    27,405.56/37,819.44 = 14,830.28/x
  3. Step 3: Cross multiply
    27,405.56x = 37,819.44 × 14,830.28
  4. Step 4: Simplify right side
    27,405.56x = 560,872,884.64
  5. Step 5: Solve for x
    x = 560,872,884.64/27,405.56
  6. Step 6: Final answer
    x = 20,465.66

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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.