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Finding the Fourth Proportional to 66,327, 99,427.98 and 33,015.58

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Solution

The fourth proportional to 66,327, 99,427.98 and 33,015.58 is: 49,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,327 : 99,427.98 = 33,015.58 : x
  2. Step 2: Convert to fraction form
    66,327/99,427.98 = 33,015.58/x
  3. Step 3: Cross multiply
    66,327x = 99,427.98 × 33,015.58
  4. Step 4: Simplify right side
    66,327x = 3,282,672,427.93
  5. Step 5: Solve for x
    x = 3,282,672,427.93/66,327
  6. Step 6: Final answer
    x = 49,492.25

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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.