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Finding the Fourth Proportional to 65,326.50, 97,990.97 and 18,580.59

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Solution

The fourth proportional to 65,326.50, 97,990.97 and 18,580.59 is: 27,871.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,326.50 : 97,990.97 = 18,580.59 : x
  2. Step 2: Convert to fraction form
    65,326.50/97,990.97 = 18,580.59/x
  3. Step 3: Cross multiply
    65,326.50x = 97,990.97 × 18,580.59
  4. Step 4: Simplify right side
    65,326.50x = 1,820,729,944.37
  5. Step 5: Solve for x
    x = 1,820,729,944.37/65,326.50
  6. Step 6: Final answer
    x = 27,871.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.