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Finding the Fourth Proportional to 66,323.72, 99,496.38 and 19,581.32

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Solution

The fourth proportional to 66,323.72, 99,496.38 and 19,581.32 is: 29,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.72 : 99,496.38 = 19,581.32 : x
  2. Step 2: Convert to fraction form
    66,323.72/99,496.38 = 19,581.32/x
  3. Step 3: Cross multiply
    66,323.72x = 99,496.38 × 19,581.32
  4. Step 4: Simplify right side
    66,323.72x = 1,948,270,455.62
  5. Step 5: Solve for x
    x = 1,948,270,455.62/66,323.72
  6. Step 6: Final answer
    x = 29,375.17

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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.