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Finding the Fourth Proportional to 64,507.04, 89,025.12 and 37,651.28

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Solution

The fourth proportional to 64,507.04, 89,025.12 and 37,651.28 is: 51,961.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,507.04 : 89,025.12 = 37,651.28 : x
  2. Step 2: Convert to fraction form
    64,507.04/89,025.12 = 37,651.28/x
  3. Step 3: Cross multiply
    64,507.04x = 89,025.12 × 37,651.28
  4. Step 4: Simplify right side
    64,507.04x = 3,351,909,720.15
  5. Step 5: Solve for x
    x = 3,351,909,720.15/64,507.04
  6. Step 6: Final answer
    x = 51,961.92

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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.