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Finding the Fourth Proportional to 58,577.81, 87,848.56 and 21,133.02

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Solution

The fourth proportional to 58,577.81, 87,848.56 and 21,133.02 is: 31,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,577.81 : 87,848.56 = 21,133.02 : x
  2. Step 2: Convert to fraction form
    58,577.81/87,848.56 = 21,133.02/x
  3. Step 3: Cross multiply
    58,577.81x = 87,848.56 × 21,133.02
  4. Step 4: Simplify right side
    58,577.81x = 1,856,505,375.45
  5. Step 5: Solve for x
    x = 1,856,505,375.45/58,577.81
  6. Step 6: Final answer
    x = 31,692.98

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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.