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Finding the Fourth Proportional to 34,992.68, 48,288.45 and 19,678.79

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Solution

The fourth proportional to 34,992.68, 48,288.45 and 19,678.79 is: 27,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,992.68 : 48,288.45 = 19,678.79 : x
  2. Step 2: Convert to fraction form
    34,992.68/48,288.45 = 19,678.79/x
  3. Step 3: Cross multiply
    34,992.68x = 48,288.45 × 19,678.79
  4. Step 4: Simplify right side
    34,992.68x = 950,258,266.98
  5. Step 5: Solve for x
    x = 950,258,266.98/34,992.68
  6. Step 6: Final answer
    x = 27,155.92

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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.