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Finding the Fourth Proportional to 10,090.70, 15,114.45 and 8,794.70

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Solution

The fourth proportional to 10,090.70, 15,114.45 and 8,794.70 is: 13,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.70 : 15,114.45 = 8,794.70 : x
  2. Step 2: Convert to fraction form
    10,090.70/15,114.45 = 8,794.70/x
  3. Step 3: Cross multiply
    10,090.70x = 15,114.45 × 8,794.70
  4. Step 4: Simplify right side
    10,090.70x = 132,927,053.42
  5. Step 5: Solve for x
    x = 132,927,053.42/10,090.70
  6. Step 6: Final answer
    x = 13,173.22

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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.