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Finding the Fourth Proportional to 30,697.92, 46,051.20 and 15,115.68

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Solution

The fourth proportional to 30,697.92, 46,051.20 and 15,115.68 is: 22,675.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,697.92 : 46,051.20 = 15,115.68 : x
  2. Step 2: Convert to fraction form
    30,697.92/46,051.20 = 15,115.68/x
  3. Step 3: Cross multiply
    30,697.92x = 46,051.20 × 15,115.68
  4. Step 4: Simplify right side
    30,697.92x = 696,095,202.82
  5. Step 5: Solve for x
    x = 696,095,202.82/30,697.92
  6. Step 6: Final answer
    x = 22,675.65

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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.