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Finding the Fourth Proportional to 85,088.97, 127,652.49 and 25,929.27

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Solution

The fourth proportional to 85,088.97, 127,652.49 and 25,929.27 is: 38,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,088.97 : 127,652.49 = 25,929.27 : x
  2. Step 2: Convert to fraction form
    85,088.97/127,652.49 = 25,929.27/x
  3. Step 3: Cross multiply
    85,088.97x = 127,652.49 × 25,929.27
  4. Step 4: Simplify right side
    85,088.97x = 3,309,935,879.38
  5. Step 5: Solve for x
    x = 3,309,935,879.38/85,088.97
  6. Step 6: Final answer
    x = 38,899.71

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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.