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Finding the Fourth Proportional to 64,907.28, 89,576.28 and 36,611.28

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Solution

The fourth proportional to 64,907.28, 89,576.28 and 36,611.28 is: 50,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,907.28 : 89,576.28 = 36,611.28 : x
  2. Step 2: Convert to fraction form
    64,907.28/89,576.28 = 36,611.28/x
  3. Step 3: Cross multiply
    64,907.28x = 89,576.28 × 36,611.28
  4. Step 4: Simplify right side
    64,907.28x = 3,279,502,268.44
  5. Step 5: Solve for x
    x = 3,279,502,268.44/64,907.28
  6. Step 6: Final answer
    x = 50,525.95

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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.