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Finding the Fourth Proportional to 65,894.91, 90,935.73 and 35,680.92

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Solution

The fourth proportional to 65,894.91, 90,935.73 and 35,680.92 is: 49,240.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.91 : 90,935.73 = 35,680.92 : x
  2. Step 2: Convert to fraction form
    65,894.91/90,935.73 = 35,680.92/x
  3. Step 3: Cross multiply
    65,894.91x = 90,935.73 × 35,680.92
  4. Step 4: Simplify right side
    65,894.91x = 3,244,670,507.27
  5. Step 5: Solve for x
    x = 3,244,670,507.27/65,894.91
  6. Step 6: Final answer
    x = 49,240.08

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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.