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Finding the Fourth Proportional to 61,607.32, 85,018.04 and 33,312.94

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Solution

The fourth proportional to 61,607.32, 85,018.04 and 33,312.94 is: 45,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,607.32 : 85,018.04 = 33,312.94 : x
  2. Step 2: Convert to fraction form
    61,607.32/85,018.04 = 33,312.94/x
  3. Step 3: Cross multiply
    61,607.32x = 85,018.04 × 33,312.94
  4. Step 4: Simplify right side
    61,607.32x = 2,832,200,611.25
  5. Step 5: Solve for x
    x = 2,832,200,611.25/61,607.32
  6. Step 6: Final answer
    x = 45,971.82

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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.