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Finding the Fourth Proportional to 66,922.96, 100,386.47 and 17,003.06

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Solution

The fourth proportional to 66,922.96, 100,386.47 and 17,003.06 is: 25,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,922.96 : 100,386.47 = 17,003.06 : x
  2. Step 2: Convert to fraction form
    66,922.96/100,386.47 = 17,003.06/x
  3. Step 3: Cross multiply
    66,922.96x = 100,386.47 × 17,003.06
  4. Step 4: Simplify right side
    66,922.96x = 1,706,877,338.55
  5. Step 5: Solve for x
    x = 1,706,877,338.55/66,922.96
  6. Step 6: Final answer
    x = 25,505.11

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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.