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Finding the Fourth Proportional to 70,511.40, 105,771.90 and 22,476.20

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Solution

The fourth proportional to 70,511.40, 105,771.90 and 22,476.20 is: 33,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,511.40 : 105,771.90 = 22,476.20 : x
  2. Step 2: Convert to fraction form
    70,511.40/105,771.90 = 22,476.20/x
  3. Step 3: Cross multiply
    70,511.40x = 105,771.90 × 22,476.20
  4. Step 4: Simplify right side
    70,511.40x = 2,377,350,378.78
  5. Step 5: Solve for x
    x = 2,377,350,378.78/70,511.40
  6. Step 6: Final answer
    x = 33,715.83

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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.