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Finding the Fourth Proportional to 14,773.65, 20,395.16 and 11,408.91

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Solution

The fourth proportional to 14,773.65, 20,395.16 and 11,408.91 is: 15,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,773.65 : 20,395.16 = 11,408.91 : x
  2. Step 2: Convert to fraction form
    14,773.65/20,395.16 = 11,408.91/x
  3. Step 3: Cross multiply
    14,773.65x = 20,395.16 × 11,408.91
  4. Step 4: Simplify right side
    14,773.65x = 232,686,544.88
  5. Step 5: Solve for x
    x = 232,686,544.88/14,773.65
  6. Step 6: Final answer
    x = 15,750.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.