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Finding the Fourth Proportional to 4,689.89, 7,026.93 and 2,835.34

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Solution

The fourth proportional to 4,689.89, 7,026.93 and 2,835.34 is: 4,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.89 : 7,026.93 = 2,835.34 : x
  2. Step 2: Convert to fraction form
    4,689.89/7,026.93 = 2,835.34/x
  3. Step 3: Cross multiply
    4,689.89x = 7,026.93 × 2,835.34
  4. Step 4: Simplify right side
    4,689.89x = 19,923,735.71
  5. Step 5: Solve for x
    x = 19,923,735.71/4,689.89
  6. Step 6: Final answer
    x = 4,248.23

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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.