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Finding the Fourth Proportional to 22,706.80, 34,060.20 and 7,124.40

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Solution

The fourth proportional to 22,706.80, 34,060.20 and 7,124.40 is: 10,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,706.80 : 34,060.20 = 7,124.40 : x
  2. Step 2: Convert to fraction form
    22,706.80/34,060.20 = 7,124.40/x
  3. Step 3: Cross multiply
    22,706.80x = 34,060.20 × 7,124.40
  4. Step 4: Simplify right side
    22,706.80x = 242,658,488.88
  5. Step 5: Solve for x
    x = 242,658,488.88/22,706.80
  6. Step 6: Final answer
    x = 10,686.60

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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.