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Finding the Fourth Proportional to 43,953.84, 65,913.95 and 15,866.28

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Solution

The fourth proportional to 43,953.84, 65,913.95 and 15,866.28 is: 23,793.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,953.84 : 65,913.95 = 15,866.28 : x
  2. Step 2: Convert to fraction form
    43,953.84/65,913.95 = 15,866.28/x
  3. Step 3: Cross multiply
    43,953.84x = 65,913.95 × 15,866.28
  4. Step 4: Simplify right side
    43,953.84x = 1,045,809,226.27
  5. Step 5: Solve for x
    x = 1,045,809,226.27/43,953.84
  6. Step 6: Final answer
    x = 23,793.35

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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.