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Finding the Fourth Proportional to 30,892.60, 46,338.90 and 30,698.20

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Solution

The fourth proportional to 30,892.60, 46,338.90 and 30,698.20 is: 46,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,892.60 : 46,338.90 = 30,698.20 : x
  2. Step 2: Convert to fraction form
    30,892.60/46,338.90 = 30,698.20/x
  3. Step 3: Cross multiply
    30,892.60x = 46,338.90 × 30,698.20
  4. Step 4: Simplify right side
    30,892.60x = 1,422,520,819.98
  5. Step 5: Solve for x
    x = 1,422,520,819.98/30,892.60
  6. Step 6: Final answer
    x = 46,047.30

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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.