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Finding the Fourth Proportional to 51,495.98, 77,234.42 and 18,216.32

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Solution

The fourth proportional to 51,495.98, 77,234.42 and 18,216.32 is: 27,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,495.98 : 77,234.42 = 18,216.32 : x
  2. Step 2: Convert to fraction form
    51,495.98/77,234.42 = 18,216.32/x
  3. Step 3: Cross multiply
    51,495.98x = 77,234.42 × 18,216.32
  4. Step 4: Simplify right side
    51,495.98x = 1,406,926,909.73
  5. Step 5: Solve for x
    x = 1,406,926,909.73/51,495.98
  6. Step 6: Final answer
    x = 27,321.10

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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.