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Finding the Fourth Proportional to 22,700.88, 34,066.80 and 7,909.80

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Solution

The fourth proportional to 22,700.88, 34,066.80 and 7,909.80 is: 11,870.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.88 : 34,066.80 = 7,909.80 : x
  2. Step 2: Convert to fraction form
    22,700.88/34,066.80 = 7,909.80/x
  3. Step 3: Cross multiply
    22,700.88x = 34,066.80 × 7,909.80
  4. Step 4: Simplify right side
    22,700.88x = 269,461,574.64
  5. Step 5: Solve for x
    x = 269,461,574.64/22,700.88
  6. Step 6: Final answer
    x = 11,870.09

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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.