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Finding the Fourth Proportional to 4,645.92, 6,966.90 and 2,888.31

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Solution

The fourth proportional to 4,645.92, 6,966.90 and 2,888.31 is: 4,331.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.92 : 6,966.90 = 2,888.31 : x
  2. Step 2: Convert to fraction form
    4,645.92/6,966.90 = 2,888.31/x
  3. Step 3: Cross multiply
    4,645.92x = 6,966.90 × 2,888.31
  4. Step 4: Simplify right side
    4,645.92x = 20,122,566.94
  5. Step 5: Solve for x
    x = 20,122,566.94/4,645.92
  6. Step 6: Final answer
    x = 4,331.23

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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.