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Finding the Fourth Proportional to 43,395.84, 65,106.24 and 13,818.24

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Solution

The fourth proportional to 43,395.84, 65,106.24 and 13,818.24 is: 20,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,395.84 : 65,106.24 = 13,818.24 : x
  2. Step 2: Convert to fraction form
    43,395.84/65,106.24 = 13,818.24/x
  3. Step 3: Cross multiply
    43,395.84x = 65,106.24 × 13,818.24
  4. Step 4: Simplify right side
    43,395.84x = 899,653,649.82
  5. Step 5: Solve for x
    x = 899,653,649.82/43,395.84
  6. Step 6: Final answer
    x = 20,731.33

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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.