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Finding the Fourth Proportional to 66,655.46, 92,007.70 and 38,372.42

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Solution

The fourth proportional to 66,655.46, 92,007.70 and 38,372.42 is: 52,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,655.46 : 92,007.70 = 38,372.42 : x
  2. Step 2: Convert to fraction form
    66,655.46/92,007.70 = 38,372.42/x
  3. Step 3: Cross multiply
    66,655.46x = 92,007.70 × 38,372.42
  4. Step 4: Simplify right side
    66,655.46x = 3,530,558,107.63
  5. Step 5: Solve for x
    x = 3,530,558,107.63/66,655.46
  6. Step 6: Final answer
    x = 52,967.28

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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.