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Finding the Fourth Proportional to 65,348.78, 98,021.14 and 18,601.65

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Solution

The fourth proportional to 65,348.78, 98,021.14 and 18,601.65 is: 27,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,348.78 : 98,021.14 = 18,601.65 : x
  2. Step 2: Convert to fraction form
    65,348.78/98,021.14 = 18,601.65/x
  3. Step 3: Cross multiply
    65,348.78x = 98,021.14 × 18,601.65
  4. Step 4: Simplify right side
    65,348.78x = 1,823,354,892.38
  5. Step 5: Solve for x
    x = 1,823,354,892.38/65,348.78
  6. Step 6: Final answer
    x = 27,901.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.