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Finding the Fourth Proportional to 18,473.76, 25,496.69 and 11,752.38

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Solution

The fourth proportional to 18,473.76, 25,496.69 and 11,752.38 is: 16,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.76 : 25,496.69 = 11,752.38 : x
  2. Step 2: Convert to fraction form
    18,473.76/25,496.69 = 11,752.38/x
  3. Step 3: Cross multiply
    18,473.76x = 25,496.69 × 11,752.38
  4. Step 4: Simplify right side
    18,473.76x = 299,646,730.86
  5. Step 5: Solve for x
    x = 299,646,730.86/18,473.76
  6. Step 6: Final answer
    x = 16,220.13

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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.