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Finding the Fourth Proportional to 66,393.46, 91,590.51 and 39,527.38

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Solution

The fourth proportional to 66,393.46, 91,590.51 and 39,527.38 is: 54,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393.46 : 91,590.51 = 39,527.38 : x
  2. Step 2: Convert to fraction form
    66,393.46/91,590.51 = 39,527.38/x
  3. Step 3: Cross multiply
    66,393.46x = 91,590.51 × 39,527.38
  4. Step 4: Simplify right side
    66,393.46x = 3,620,332,893.16
  5. Step 5: Solve for x
    x = 3,620,332,893.16/66,393.46
  6. Step 6: Final answer
    x = 54,528.46

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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.