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Finding the Fourth Proportional to 66,604.76, 99,904.82 and 16,685.28

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Solution

The fourth proportional to 66,604.76, 99,904.82 and 16,685.28 is: 25,027.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,604.76 : 99,904.82 = 16,685.28 : x
  2. Step 2: Convert to fraction form
    66,604.76/99,904.82 = 16,685.28/x
  3. Step 3: Cross multiply
    66,604.76x = 99,904.82 × 16,685.28
  4. Step 4: Simplify right side
    66,604.76x = 1,666,939,811.62
  5. Step 5: Solve for x
    x = 1,666,939,811.62/66,604.76
  6. Step 6: Final answer
    x = 25,027.34

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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.