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Finding the Fourth Proportional to 66,596.37, 91,905.74 and 38,302.03

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Solution

The fourth proportional to 66,596.37, 91,905.74 and 38,302.03 is: 52,858.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,596.37 : 91,905.74 = 38,302.03 : x
  2. Step 2: Convert to fraction form
    66,596.37/91,905.74 = 38,302.03/x
  3. Step 3: Cross multiply
    66,596.37x = 91,905.74 × 38,302.03
  4. Step 4: Simplify right side
    66,596.37x = 3,520,176,410.65
  5. Step 5: Solve for x
    x = 3,520,176,410.65/66,596.37
  6. Step 6: Final answer
    x = 52,858.38

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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.