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Finding the Fourth Proportional to 58,801.60, 81,142 and 33,300.64

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Solution

The fourth proportional to 58,801.60, 81,142 and 33,300.64 is: 45,952.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,801.60 : 81,142 = 33,300.64 : x
  2. Step 2: Convert to fraction form
    58,801.60/81,142 = 33,300.64/x
  3. Step 3: Cross multiply
    58,801.60x = 81,142 × 33,300.64
  4. Step 4: Simplify right side
    58,801.60x = 2,702,080,530.88
  5. Step 5: Solve for x
    x = 2,702,080,530.88/58,801.60
  6. Step 6: Final answer
    x = 45,952.50

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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.