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Finding the Fourth Proportional to 70,602.69, 105,917.10 and 23,220.39

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Solution

The fourth proportional to 70,602.69, 105,917.10 and 23,220.39 is: 34,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,602.69 : 105,917.10 = 23,220.39 : x
  2. Step 2: Convert to fraction form
    70,602.69/105,917.10 = 23,220.39/x
  3. Step 3: Cross multiply
    70,602.69x = 105,917.10 × 23,220.39
  4. Step 4: Simplify right side
    70,602.69x = 2,459,436,369.67
  5. Step 5: Solve for x
    x = 2,459,436,369.67/70,602.69
  6. Step 6: Final answer
    x = 34,834.88

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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.