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Finding the Fourth Proportional to 22,869.40, 34,304.10 and 11,205.40

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Solution

The fourth proportional to 22,869.40, 34,304.10 and 11,205.40 is: 16,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,869.40 : 34,304.10 = 11,205.40 : x
  2. Step 2: Convert to fraction form
    22,869.40/34,304.10 = 11,205.40/x
  3. Step 3: Cross multiply
    22,869.40x = 34,304.10 × 11,205.40
  4. Step 4: Simplify right side
    22,869.40x = 384,391,162.14
  5. Step 5: Solve for x
    x = 384,391,162.14/22,869.40
  6. Step 6: Final answer
    x = 16,808.10

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1.5x scale

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.