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Finding the Fourth Proportional to 22,700.80, 34,051.35 and 7,910.00

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Solution

The fourth proportional to 22,700.80, 34,051.35 and 7,910.00 is: 11,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.80 : 34,051.35 = 7,910.00 : x
  2. Step 2: Convert to fraction form
    22,700.80/34,051.35 = 7,910.00/x
  3. Step 3: Cross multiply
    22,700.80x = 34,051.35 × 7,910.00
  4. Step 4: Simplify right side
    22,700.80x = 269,346,165.60
  5. Step 5: Solve for x
    x = 269,346,165.60/22,700.80
  6. Step 6: Final answer
    x = 11,865.05

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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.