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Finding the Fourth Proportional to 64,145.30, 96,217.95 and 28,597.44

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Solution

The fourth proportional to 64,145.30, 96,217.95 and 28,597.44 is: 42,896.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,145.30 : 96,217.95 = 28,597.44 : x
  2. Step 2: Convert to fraction form
    64,145.30/96,217.95 = 28,597.44/x
  3. Step 3: Cross multiply
    64,145.30x = 96,217.95 × 28,597.44
  4. Step 4: Simplify right side
    64,145.30x = 2,751,587,052.05
  5. Step 5: Solve for x
    x = 2,751,587,052.05/64,145.30
  6. Step 6: Final answer
    x = 42,896.16

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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.