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Finding the Fourth Proportional to 10,780.21, 14,874.93 and 6,064.21

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Solution

The fourth proportional to 10,780.21, 14,874.93 and 6,064.21 is: 8,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.21 : 14,874.93 = 6,064.21 : x
  2. Step 2: Convert to fraction form
    10,780.21/14,874.93 = 6,064.21/x
  3. Step 3: Cross multiply
    10,780.21x = 14,874.93 × 6,064.21
  4. Step 4: Simplify right side
    10,780.21x = 90,204,699.26
  5. Step 5: Solve for x
    x = 90,204,699.26/10,780.21
  6. Step 6: Final answer
    x = 8,367.62

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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.