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Finding the Fourth Proportional to 27,656.60, 41,485.13 and 7,935.78

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Solution

The fourth proportional to 27,656.60, 41,485.13 and 7,935.78 is: 11,903.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,656.60 : 41,485.13 = 7,935.78 : x
  2. Step 2: Convert to fraction form
    27,656.60/41,485.13 = 7,935.78/x
  3. Step 3: Cross multiply
    27,656.60x = 41,485.13 × 7,935.78
  4. Step 4: Simplify right side
    27,656.60x = 329,216,884.79
  5. Step 5: Solve for x
    x = 329,216,884.79/27,656.60
  6. Step 6: Final answer
    x = 11,903.74

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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.