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Finding the Fourth Proportional to 65,863.84, 90,912.54 and 37,588.36

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Solution

The fourth proportional to 65,863.84, 90,912.54 and 37,588.36 is: 51,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,863.84 : 90,912.54 = 37,588.36 : x
  2. Step 2: Convert to fraction form
    65,863.84/90,912.54 = 37,588.36/x
  3. Step 3: Cross multiply
    65,863.84x = 90,912.54 × 37,588.36
  4. Step 4: Simplify right side
    65,863.84x = 3,417,253,282.03
  5. Step 5: Solve for x
    x = 3,417,253,282.03/65,863.84
  6. Step 6: Final answer
    x = 51,883.60

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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.