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Finding the Fourth Proportional to 30,989.83, 46,485.85 and 9,927.14

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Solution

The fourth proportional to 30,989.83, 46,485.85 and 9,927.14 is: 14,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,989.83 : 46,485.85 = 9,927.14 : x
  2. Step 2: Convert to fraction form
    30,989.83/46,485.85 = 9,927.14/x
  3. Step 3: Cross multiply
    30,989.83x = 46,485.85 × 9,927.14
  4. Step 4: Simplify right side
    30,989.83x = 461,471,308.54
  5. Step 5: Solve for x
    x = 461,471,308.54/30,989.83
  6. Step 6: Final answer
    x = 14,891.06

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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.