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Finding the Fourth Proportional to 43,355.52, 65,052.96 and 42,656.64

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Solution

The fourth proportional to 43,355.52, 65,052.96 and 42,656.64 is: 64,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,355.52 : 65,052.96 = 42,656.64 : x
  2. Step 2: Convert to fraction form
    43,355.52/65,052.96 = 42,656.64/x
  3. Step 3: Cross multiply
    43,355.52x = 65,052.96 × 42,656.64
  4. Step 4: Simplify right side
    43,355.52x = 2,774,940,695.65
  5. Step 5: Solve for x
    x = 2,774,940,695.65/43,355.52
  6. Step 6: Final answer
    x = 64,004.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.