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Finding the Fourth Proportional to 34,770.67, 47,982.68 and 18,854.71

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Solution

The fourth proportional to 34,770.67, 47,982.68 and 18,854.71 is: 26,019.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,770.67 : 47,982.68 = 18,854.71 : x
  2. Step 2: Convert to fraction form
    34,770.67/47,982.68 = 18,854.71/x
  3. Step 3: Cross multiply
    34,770.67x = 47,982.68 × 18,854.71
  4. Step 4: Simplify right side
    34,770.67x = 904,699,422.15
  5. Step 5: Solve for x
    x = 904,699,422.15/34,770.67
  6. Step 6: Final answer
    x = 26,019.04

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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.