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Finding the Fourth Proportional to 43,648.74, 65,484.05 and 14,065.92

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Solution

The fourth proportional to 43,648.74, 65,484.05 and 14,065.92 is: 21,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,648.74 : 65,484.05 = 14,065.92 : x
  2. Step 2: Convert to fraction form
    43,648.74/65,484.05 = 14,065.92/x
  3. Step 3: Cross multiply
    43,648.74x = 65,484.05 × 14,065.92
  4. Step 4: Simplify right side
    43,648.74x = 921,093,338.25
  5. Step 5: Solve for x
    x = 921,093,338.25/43,648.74
  6. Step 6: Final answer
    x = 21,102.40

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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.