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Finding the Fourth Proportional to 27,077.88, 40,619.74 and 7,356.76

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Solution

The fourth proportional to 27,077.88, 40,619.74 and 7,356.76 is: 11,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,077.88 : 40,619.74 = 7,356.76 : x
  2. Step 2: Convert to fraction form
    27,077.88/40,619.74 = 7,356.76/x
  3. Step 3: Cross multiply
    27,077.88x = 40,619.74 × 7,356.76
  4. Step 4: Simplify right side
    27,077.88x = 298,829,678.44
  5. Step 5: Solve for x
    x = 298,829,678.44/27,077.88
  6. Step 6: Final answer
    x = 11,035.93

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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.