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Finding the Fourth Proportional to 65,861.94, 90,903.33 and 60,548.34

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Solution

The fourth proportional to 65,861.94, 90,903.33 and 60,548.34 is: 83,569.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,861.94 : 90,903.33 = 60,548.34 : x
  2. Step 2: Convert to fraction form
    65,861.94/90,903.33 = 60,548.34/x
  3. Step 3: Cross multiply
    65,861.94x = 90,903.33 × 60,548.34
  4. Step 4: Simplify right side
    65,861.94x = 5,504,045,731.97
  5. Step 5: Solve for x
    x = 5,504,045,731.97/65,861.94
  6. Step 6: Final answer
    x = 83,569.44

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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.