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Finding the Fourth Proportional to 34,921.62, 48,190.68 and 19,813.50

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Solution

The fourth proportional to 34,921.62, 48,190.68 and 19,813.50 is: 27,341.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,921.62 : 48,190.68 = 19,813.50 : x
  2. Step 2: Convert to fraction form
    34,921.62/48,190.68 = 19,813.50/x
  3. Step 3: Cross multiply
    34,921.62x = 48,190.68 × 19,813.50
  4. Step 4: Simplify right side
    34,921.62x = 954,826,038.18
  5. Step 5: Solve for x
    x = 954,826,038.18/34,921.62
  6. Step 6: Final answer
    x = 27,341.97

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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.