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Finding the Fourth Proportional to 51,486.51, 77,216.81 and 16,408.11

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Solution

The fourth proportional to 51,486.51, 77,216.81 and 16,408.11 is: 24,608.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,486.51 : 77,216.81 = 16,408.11 : x
  2. Step 2: Convert to fraction form
    51,486.51/77,216.81 = 16,408.11/x
  3. Step 3: Cross multiply
    51,486.51x = 77,216.81 × 16,408.11
  4. Step 4: Simplify right side
    51,486.51x = 1,266,981,830.29
  5. Step 5: Solve for x
    x = 1,266,981,830.29/51,486.51
  6. Step 6: Final answer
    x = 24,608.03

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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.