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Finding the Fourth Proportional to 61,604.32, 85,013.94 and 33,310

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Solution

The fourth proportional to 61,604.32, 85,013.94 and 33,310 is: 45,967.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,604.32 : 85,013.94 = 33,310 : x
  2. Step 2: Convert to fraction form
    61,604.32/85,013.94 = 33,310/x
  3. Step 3: Cross multiply
    61,604.32x = 85,013.94 × 33,310
  4. Step 4: Simplify right side
    61,604.32x = 2,831,814,341.40
  5. Step 5: Solve for x
    x = 2,831,814,341.40/61,604.32
  6. Step 6: Final answer
    x = 45,967.79

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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.