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Finding the Fourth Proportional to 5,006.70, 6,909.84 and 2,910.82

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Solution

The fourth proportional to 5,006.70, 6,909.84 and 2,910.82 is: 4,017.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,006.70 : 6,909.84 = 2,910.82 : x
  2. Step 2: Convert to fraction form
    5,006.70/6,909.84 = 2,910.82/x
  3. Step 3: Cross multiply
    5,006.70x = 6,909.84 × 2,910.82
  4. Step 4: Simplify right side
    5,006.70x = 20,113,300.47
  5. Step 5: Solve for x
    x = 20,113,300.47/5,006.70
  6. Step 6: Final answer
    x = 4,017.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.