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Finding the Fourth Proportional to 16,959.48, 25,429.48 and 15,981

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Solution

The fourth proportional to 16,959.48, 25,429.48 and 15,981 is: 23,962.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.48 : 25,429.48 = 15,981 : x
  2. Step 2: Convert to fraction form
    16,959.48/25,429.48 = 15,981/x
  3. Step 3: Cross multiply
    16,959.48x = 25,429.48 × 15,981
  4. Step 4: Simplify right side
    16,959.48x = 406,388,519.88
  5. Step 5: Solve for x
    x = 406,388,519.88/16,959.48
  6. Step 6: Final answer
    x = 23,962.32

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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.