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Finding the Fourth Proportional to 71,958.96, 99,297 and 41,332.32

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Solution

The fourth proportional to 71,958.96, 99,297 and 41,332.32 is: 57,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,958.96 : 99,297 = 41,332.32 : x
  2. Step 2: Convert to fraction form
    71,958.96/99,297 = 41,332.32/x
  3. Step 3: Cross multiply
    71,958.96x = 99,297 × 41,332.32
  4. Step 4: Simplify right side
    71,958.96x = 4,104,175,379.04
  5. Step 5: Solve for x
    x = 4,104,175,379.04/71,958.96
  6. Step 6: Final answer
    x = 57,034.95

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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.