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Finding the Fourth Proportional to 30,714.58, 46,062.06 and 11,990.08

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Solution

The fourth proportional to 30,714.58, 46,062.06 and 11,990.08 is: 17,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,714.58 : 46,062.06 = 11,990.08 : x
  2. Step 2: Convert to fraction form
    30,714.58/46,062.06 = 11,990.08/x
  3. Step 3: Cross multiply
    30,714.58x = 46,062.06 × 11,990.08
  4. Step 4: Simplify right side
    30,714.58x = 552,287,784.36
  5. Step 5: Solve for x
    x = 552,287,784.36/30,714.58
  6. Step 6: Final answer
    x = 17,981.29

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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.