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Finding the Fourth Proportional to 17,136.68, 25,653.18 and 15,840.68

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Solution

The fourth proportional to 17,136.68, 25,653.18 and 15,840.68 is: 23,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,136.68 : 25,653.18 = 15,840.68 : x
  2. Step 2: Convert to fraction form
    17,136.68/25,653.18 = 15,840.68/x
  3. Step 3: Cross multiply
    17,136.68x = 25,653.18 × 15,840.68
  4. Step 4: Simplify right side
    17,136.68x = 406,363,815.36
  5. Step 5: Solve for x
    x = 406,363,815.36/17,136.68
  6. Step 6: Final answer
    x = 23,713.10

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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.