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Finding the Fourth Proportional to 66,851.69, 92,269.01 and 38,553.53

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Solution

The fourth proportional to 66,851.69, 92,269.01 and 38,553.53 is: 53,211.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,851.69 : 92,269.01 = 38,553.53 : x
  2. Step 2: Convert to fraction form
    66,851.69/92,269.01 = 38,553.53/x
  3. Step 3: Cross multiply
    66,851.69x = 92,269.01 × 38,553.53
  4. Step 4: Simplify right side
    66,851.69x = 3,557,295,852.34
  5. Step 5: Solve for x
    x = 3,557,295,852.34/66,851.69
  6. Step 6: Final answer
    x = 53,211.76

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1.5x scale

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.