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Finding the Fourth Proportional to 30,714.99, 46,062.69 and 11,990.48

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Solution

The fourth proportional to 30,714.99, 46,062.69 and 11,990.48 is: 17,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.99 : 46,062.69 = 11,990.48 : x
  2. Step 2: Convert to fraction form
    30,714.99/46,062.69 = 11,990.48/x
  3. Step 3: Cross multiply
    30,714.99x = 46,062.69 × 11,990.48
  4. Step 4: Simplify right side
    30,714.99x = 552,313,763.19
  5. Step 5: Solve for x
    x = 552,313,763.19/30,714.99
  6. Step 6: Final answer
    x = 17,981.90

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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.