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Finding the Fourth Proportional to 47,645.42, 65,792.45 and 29,770.94

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Solution

The fourth proportional to 47,645.42, 65,792.45 and 29,770.94 is: 41,110.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,645.42 : 65,792.45 = 29,770.94 : x
  2. Step 2: Convert to fraction form
    47,645.42/65,792.45 = 29,770.94/x
  3. Step 3: Cross multiply
    47,645.42x = 65,792.45 × 29,770.94
  4. Step 4: Simplify right side
    47,645.42x = 1,958,703,320.31
  5. Step 5: Solve for x
    x = 1,958,703,320.31/47,645.42
  6. Step 6: Final answer
    x = 41,110.01

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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.