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Finding the Fourth Proportional to 16,618.88, 24,935.64 and 7,860.08

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Solution

The fourth proportional to 16,618.88, 24,935.64 and 7,860.08 is: 11,793.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,618.88 : 24,935.64 = 7,860.08 : x
  2. Step 2: Convert to fraction form
    16,618.88/24,935.64 = 7,860.08/x
  3. Step 3: Cross multiply
    16,618.88x = 24,935.64 × 7,860.08
  4. Step 4: Simplify right side
    16,618.88x = 195,996,125.25
  5. Step 5: Solve for x
    x = 195,996,125.25/16,618.88
  6. Step 6: Final answer
    x = 11,793.58

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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.