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Finding the Fourth Proportional to 70,267.92, 105,342.36 and 30,795.12

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Solution

The fourth proportional to 70,267.92, 105,342.36 and 30,795.12 is: 46,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,267.92 : 105,342.36 = 30,795.12 : x
  2. Step 2: Convert to fraction form
    70,267.92/105,342.36 = 30,795.12/x
  3. Step 3: Cross multiply
    70,267.92x = 105,342.36 × 30,795.12
  4. Step 4: Simplify right side
    70,267.92x = 3,244,030,617.28
  5. Step 5: Solve for x
    x = 3,244,030,617.28/70,267.92
  6. Step 6: Final answer
    x = 46,166.60

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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.