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Finding the Fourth Proportional to 34,876.96, 48,129.64 and 18,961.82

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Solution

The fourth proportional to 34,876.96, 48,129.64 and 18,961.82 is: 26,167.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,876.96 : 48,129.64 = 18,961.82 : x
  2. Step 2: Convert to fraction form
    34,876.96/48,129.64 = 18,961.82/x
  3. Step 3: Cross multiply
    34,876.96x = 48,129.64 × 18,961.82
  4. Step 4: Simplify right side
    34,876.96x = 912,625,570.34
  5. Step 5: Solve for x
    x = 912,625,570.34/34,876.96
  6. Step 6: Final answer
    x = 26,167.00

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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.