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Finding the Fourth Proportional to 66,281.96, 91,466.34 and 36,472.04

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Solution

The fourth proportional to 66,281.96, 91,466.34 and 36,472.04 is: 50,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,281.96 : 91,466.34 = 36,472.04 : x
  2. Step 2: Convert to fraction form
    66,281.96/91,466.34 = 36,472.04/x
  3. Step 3: Cross multiply
    66,281.96x = 91,466.34 × 36,472.04
  4. Step 4: Simplify right side
    66,281.96x = 3,335,964,011.13
  5. Step 5: Solve for x
    x = 3,335,964,011.13/66,281.96
  6. Step 6: Final answer
    x = 50,329.89

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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.