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Finding the Fourth Proportional to 4,330.79, 5,978.79 and 3,333.89

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Solution

The fourth proportional to 4,330.79, 5,978.79 and 3,333.89 is: 4,602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,330.79 : 5,978.79 = 3,333.89 : x
  2. Step 2: Convert to fraction form
    4,330.79/5,978.79 = 3,333.89/x
  3. Step 3: Cross multiply
    4,330.79x = 5,978.79 × 3,333.89
  4. Step 4: Simplify right side
    4,330.79x = 19,932,598.30
  5. Step 5: Solve for x
    x = 19,932,598.30/4,330.79
  6. Step 6: Final answer
    x = 4,602.53

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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.