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Finding the Fourth Proportional to 16,857.55, 25,231.65 and 16,857.55

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Solution

The fourth proportional to 16,857.55, 25,231.65 and 16,857.55 is: 25,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.55 : 25,231.65 = 16,857.55 : x
  2. Step 2: Convert to fraction form
    16,857.55/25,231.65 = 16,857.55/x
  3. Step 3: Cross multiply
    16,857.55x = 25,231.65 × 16,857.55
  4. Step 4: Simplify right side
    16,857.55x = 425,343,801.46
  5. Step 5: Solve for x
    x = 425,343,801.46/16,857.55
  6. Step 6: Final answer
    x = 25,231.65

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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.