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Finding the Fourth Proportional to 65,571.84, 90,485.76 and 35,758.08

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Solution

The fourth proportional to 65,571.84, 90,485.76 and 35,758.08 is: 49,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,571.84 : 90,485.76 = 35,758.08 : x
  2. Step 2: Convert to fraction form
    65,571.84/90,485.76 = 35,758.08/x
  3. Step 3: Cross multiply
    65,571.84x = 90,485.76 × 35,758.08
  4. Step 4: Simplify right side
    65,571.84x = 3,235,597,044.94
  5. Step 5: Solve for x
    x = 3,235,597,044.94/65,571.84
  6. Step 6: Final answer
    x = 49,344.31

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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.