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Finding the Fourth Proportional to 25,579.74, 38,375.10 and 14,491.74

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Solution

The fourth proportional to 25,579.74, 38,375.10 and 14,491.74 is: 21,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,579.74 : 38,375.10 = 14,491.74 : x
  2. Step 2: Convert to fraction form
    25,579.74/38,375.10 = 14,491.74/x
  3. Step 3: Cross multiply
    25,579.74x = 38,375.10 × 14,491.74
  4. Step 4: Simplify right side
    25,579.74x = 556,121,971.67
  5. Step 5: Solve for x
    x = 556,121,971.67/25,579.74
  6. Step 6: Final answer
    x = 21,740.72

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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.