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Finding the Fourth Proportional to 28,366.88, 38,981.86 and 27,065.96

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Solution

The fourth proportional to 28,366.88, 38,981.86 and 27,065.96 is: 37,194.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.88 : 38,981.86 = 27,065.96 : x
  2. Step 2: Convert to fraction form
    28,366.88/38,981.86 = 27,065.96/x
  3. Step 3: Cross multiply
    28,366.88x = 38,981.86 × 27,065.96
  4. Step 4: Simplify right side
    28,366.88x = 1,055,081,463.49
  5. Step 5: Solve for x
    x = 1,055,081,463.49/28,366.88
  6. Step 6: Final answer
    x = 37,194.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.