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Finding the Fourth Proportional to 66,358.74, 99,554.98 and 19,611.62

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Solution

The fourth proportional to 66,358.74, 99,554.98 and 19,611.62 is: 29,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,358.74 : 99,554.98 = 19,611.62 : x
  2. Step 2: Convert to fraction form
    66,358.74/99,554.98 = 19,611.62/x
  3. Step 3: Cross multiply
    66,358.74x = 99,554.98 × 19,611.62
  4. Step 4: Simplify right side
    66,358.74x = 1,952,434,436.87
  5. Step 5: Solve for x
    x = 1,952,434,436.87/66,358.74
  6. Step 6: Final answer
    x = 29,422.42

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1.5x scale

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.