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Finding the Fourth Proportional to 10,805.58, 14,912.10 and 6,090.30

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Solution

The fourth proportional to 10,805.58, 14,912.10 and 6,090.30 is: 8,404.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,805.58 : 14,912.10 = 6,090.30 : x
  2. Step 2: Convert to fraction form
    10,805.58/14,912.10 = 6,090.30/x
  3. Step 3: Cross multiply
    10,805.58x = 14,912.10 × 6,090.30
  4. Step 4: Simplify right side
    10,805.58x = 90,819,162.63
  5. Step 5: Solve for x
    x = 90,819,162.63/10,805.58
  6. Step 6: Final answer
    x = 8,404.84

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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.