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Finding the Fourth Proportional to 64,636.08, 89,188.02 and 36,336.30

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Solution

The fourth proportional to 64,636.08, 89,188.02 and 36,336.30 is: 50,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,636.08 : 89,188.02 = 36,336.30 : x
  2. Step 2: Convert to fraction form
    64,636.08/89,188.02 = 36,336.30/x
  3. Step 3: Cross multiply
    64,636.08x = 89,188.02 × 36,336.30
  4. Step 4: Simplify right side
    64,636.08x = 3,240,762,651.13
  5. Step 5: Solve for x
    x = 3,240,762,651.13/64,636.08
  6. Step 6: Final answer
    x = 50,138.60

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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.