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Finding the Fourth Proportional to 64,536.80, 89,057.80 and 35,858.48

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Solution

The fourth proportional to 64,536.80, 89,057.80 and 35,858.48 is: 49,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,536.80 : 89,057.80 = 35,858.48 : x
  2. Step 2: Convert to fraction form
    64,536.80/89,057.80 = 35,858.48/x
  3. Step 3: Cross multiply
    64,536.80x = 89,057.80 × 35,858.48
  4. Step 4: Simplify right side
    64,536.80x = 3,193,477,340.14
  5. Step 5: Solve for x
    x = 3,193,477,340.14/64,536.80
  6. Step 6: Final answer
    x = 49,483.04

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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.