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Finding the Fourth Proportional to 25,636.30, 38,424.30 and 11,579.92

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Solution

The fourth proportional to 25,636.30, 38,424.30 and 11,579.92 is: 17,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,636.30 : 38,424.30 = 11,579.92 : x
  2. Step 2: Convert to fraction form
    25,636.30/38,424.30 = 11,579.92/x
  3. Step 3: Cross multiply
    25,636.30x = 38,424.30 × 11,579.92
  4. Step 4: Simplify right side
    25,636.30x = 444,950,320.06
  5. Step 5: Solve for x
    x = 444,950,320.06/25,636.30
  6. Step 6: Final answer
    x = 17,356.26

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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.