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Finding the Fourth Proportional to 65,905.88, 90,957.48 and 37,616.36

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Solution

The fourth proportional to 65,905.88, 90,957.48 and 37,616.36 is: 51,914.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,905.88 : 90,957.48 = 37,616.36 : x
  2. Step 2: Convert to fraction form
    65,905.88/90,957.48 = 37,616.36/x
  3. Step 3: Cross multiply
    65,905.88x = 90,957.48 × 37,616.36
  4. Step 4: Simplify right side
    65,905.88x = 3,421,489,312.37
  5. Step 5: Solve for x
    x = 3,421,489,312.37/65,905.88
  6. Step 6: Final answer
    x = 51,914.78

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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.