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Finding the Fourth Proportional to 25,491.69, 35,179.71 and 14,161.20

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Solution

The fourth proportional to 25,491.69, 35,179.71 and 14,161.20 is: 19,543.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.69 : 35,179.71 = 14,161.20 : x
  2. Step 2: Convert to fraction form
    25,491.69/35,179.71 = 14,161.20/x
  3. Step 3: Cross multiply
    25,491.69x = 35,179.71 × 14,161.20
  4. Step 4: Simplify right side
    25,491.69x = 498,186,909.25
  5. Step 5: Solve for x
    x = 498,186,909.25/25,491.69
  6. Step 6: Final answer
    x = 19,543.11

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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.