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Finding the Fourth Proportional to 27,681.68, 41,518.06 and 7,955.74

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Solution

The fourth proportional to 27,681.68, 41,518.06 and 7,955.74 is: 11,932.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.68 : 41,518.06 = 7,955.74 : x
  2. Step 2: Convert to fraction form
    27,681.68/41,518.06 = 7,955.74/x
  3. Step 3: Cross multiply
    27,681.68x = 41,518.06 × 7,955.74
  4. Step 4: Simplify right side
    27,681.68x = 330,306,890.66
  5. Step 5: Solve for x
    x = 330,306,890.66/27,681.68
  6. Step 6: Final answer
    x = 11,932.33

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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.