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Finding the Fourth Proportional to 70,245.50, 105,346.38 and 23,487.44

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Solution

The fourth proportional to 70,245.50, 105,346.38 and 23,487.44 is: 35,223.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,245.50 : 105,346.38 = 23,487.44 : x
  2. Step 2: Convert to fraction form
    70,245.50/105,346.38 = 23,487.44/x
  3. Step 3: Cross multiply
    70,245.50x = 105,346.38 × 23,487.44
  4. Step 4: Simplify right side
    70,245.50x = 2,474,316,779.47
  5. Step 5: Solve for x
    x = 2,474,316,779.47/70,245.50
  6. Step 6: Final answer
    x = 35,223.85

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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.