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Finding the Fourth Proportional to 35,624.70, 53,401.80 and 16,871.78

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Solution

The fourth proportional to 35,624.70, 53,401.80 and 16,871.78 is: 25,290.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,624.70 : 53,401.80 = 16,871.78 : x
  2. Step 2: Convert to fraction form
    35,624.70/53,401.80 = 16,871.78/x
  3. Step 3: Cross multiply
    35,624.70x = 53,401.80 × 16,871.78
  4. Step 4: Simplify right side
    35,624.70x = 900,983,154.20
  5. Step 5: Solve for x
    x = 900,983,154.20/35,624.70
  6. Step 6: Final answer
    x = 25,290.97

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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.