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Finding the Fourth Proportional to 34,876.91, 48,129.14 and 19,770.98

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Solution

The fourth proportional to 34,876.91, 48,129.14 and 19,770.98 is: 27,283.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,876.91 : 48,129.14 = 19,770.98 : x
  2. Step 2: Convert to fraction form
    34,876.91/48,129.14 = 19,770.98/x
  3. Step 3: Cross multiply
    34,876.91x = 48,129.14 × 19,770.98
  4. Step 4: Simplify right side
    34,876.91x = 951,559,924.86
  5. Step 5: Solve for x
    x = 951,559,924.86/34,876.91
  6. Step 6: Final answer
    x = 27,283.38

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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.