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Finding the Fourth Proportional to 64,693.63, 89,276.20 and 36,399.39

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Solution

The fourth proportional to 64,693.63, 89,276.20 and 36,399.39 is: 50,230.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693.63 : 89,276.20 = 36,399.39 : x
  2. Step 2: Convert to fraction form
    64,693.63/89,276.20 = 36,399.39/x
  3. Step 3: Cross multiply
    64,693.63x = 89,276.20 × 36,399.39
  4. Step 4: Simplify right side
    64,693.63x = 3,249,599,221.52
  5. Step 5: Solve for x
    x = 3,249,599,221.52/64,693.63
  6. Step 6: Final answer
    x = 50,230.59

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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.