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Finding the Fourth Proportional to 66,293.34, 91,486.19 and 36,080.34

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Solution

The fourth proportional to 66,293.34, 91,486.19 and 36,080.34 is: 49,791.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,293.34 : 91,486.19 = 36,080.34 : x
  2. Step 2: Convert to fraction form
    66,293.34/91,486.19 = 36,080.34/x
  3. Step 3: Cross multiply
    66,293.34x = 91,486.19 × 36,080.34
  4. Step 4: Simplify right side
    66,293.34x = 3,300,852,660.10
  5. Step 5: Solve for x
    x = 3,300,852,660.10/66,293.34
  6. Step 6: Final answer
    x = 49,791.62

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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.