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Finding the Fourth Proportional to 64,858.94, 89,504.12 and 36,564.64

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Solution

The fourth proportional to 64,858.94, 89,504.12 and 36,564.64 is: 50,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,858.94 : 89,504.12 = 36,564.64 : x
  2. Step 2: Convert to fraction form
    64,858.94/89,504.12 = 36,564.64/x
  3. Step 3: Cross multiply
    64,858.94x = 89,504.12 × 36,564.64
  4. Step 4: Simplify right side
    64,858.94x = 3,272,685,926.32
  5. Step 5: Solve for x
    x = 3,272,685,926.32/64,858.94
  6. Step 6: Final answer
    x = 50,458.52

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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.