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Finding the Fourth Proportional to 8,710.96, 13,063.68 and 2,866.21

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Solution

The fourth proportional to 8,710.96, 13,063.68 and 2,866.21 is: 4,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,710.96 : 13,063.68 = 2,866.21 : x
  2. Step 2: Convert to fraction form
    8,710.96/13,063.68 = 2,866.21/x
  3. Step 3: Cross multiply
    8,710.96x = 13,063.68 × 2,866.21
  4. Step 4: Simplify right side
    8,710.96x = 37,443,250.25
  5. Step 5: Solve for x
    x = 37,443,250.25/8,710.96
  6. Step 6: Final answer
    x = 4,298.41

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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.