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Finding the Fourth Proportional to 3,335.72, 4,999.80 and 1,486.58

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Solution

The fourth proportional to 3,335.72, 4,999.80 and 1,486.58 is: 2,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,335.72 : 4,999.80 = 1,486.58 : x
  2. Step 2: Convert to fraction form
    3,335.72/4,999.80 = 1,486.58/x
  3. Step 3: Cross multiply
    3,335.72x = 4,999.80 × 1,486.58
  4. Step 4: Simplify right side
    3,335.72x = 7,432,602.68
  5. Step 5: Solve for x
    x = 7,432,602.68/3,335.72
  6. Step 6: Final answer
    x = 2,228.19

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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.