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Finding the Fourth Proportional to 16,965.02, 25,430.11 and 7,110.02

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Solution

The fourth proportional to 16,965.02, 25,430.11 and 7,110.02 is: 10,657.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,965.02 : 25,430.11 = 7,110.02 : x
  2. Step 2: Convert to fraction form
    16,965.02/25,430.11 = 7,110.02/x
  3. Step 3: Cross multiply
    16,965.02x = 25,430.11 × 7,110.02
  4. Step 4: Simplify right side
    16,965.02x = 180,808,590.70
  5. Step 5: Solve for x
    x = 180,808,590.70/16,965.02
  6. Step 6: Final answer
    x = 10,657.73

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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.