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Finding the Fourth Proportional to 64,656.68, 89,225.36 and 36,362.36

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Solution

The fourth proportional to 64,656.68, 89,225.36 and 36,362.36 is: 50,179.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,656.68 : 89,225.36 = 36,362.36 : x
  2. Step 2: Convert to fraction form
    64,656.68/89,225.36 = 36,362.36/x
  3. Step 3: Cross multiply
    64,656.68x = 89,225.36 × 36,362.36
  4. Step 4: Simplify right side
    64,656.68x = 3,244,444,479.64
  5. Step 5: Solve for x
    x = 3,244,444,479.64/64,656.68
  6. Step 6: Final answer
    x = 50,179.58

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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.