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Finding the Fourth Proportional to 58,994.48, 81,420.72 and 33,507.20

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Solution

The fourth proportional to 58,994.48, 81,420.72 and 33,507.20 is: 46,244.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,994.48 : 81,420.72 = 33,507.20 : x
  2. Step 2: Convert to fraction form
    58,994.48/81,420.72 = 33,507.20/x
  3. Step 3: Cross multiply
    58,994.48x = 81,420.72 × 33,507.20
  4. Step 4: Simplify right side
    58,994.48x = 2,728,180,427.08
  5. Step 5: Solve for x
    x = 2,728,180,427.08/58,994.48
  6. Step 6: Final answer
    x = 46,244.67

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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.