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Finding the Fourth Proportional to 31,287.99, 46,935.90 and 10,230.15

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Solution

The fourth proportional to 31,287.99, 46,935.90 and 10,230.15 is: 15,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.99 : 46,935.90 = 10,230.15 : x
  2. Step 2: Convert to fraction form
    31,287.99/46,935.90 = 10,230.15/x
  3. Step 3: Cross multiply
    31,287.99x = 46,935.90 × 10,230.15
  4. Step 4: Simplify right side
    31,287.99x = 480,161,297.39
  5. Step 5: Solve for x
    x = 480,161,297.39/31,287.99
  6. Step 6: Final answer
    x = 15,346.51

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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.