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Finding the Fourth Proportional to 10,091.70, 15,132.15 and 4,241.70

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Solution

The fourth proportional to 10,091.70, 15,132.15 and 4,241.70 is: 6,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.70 : 15,132.15 = 4,241.70 : x
  2. Step 2: Convert to fraction form
    10,091.70/15,132.15 = 4,241.70/x
  3. Step 3: Cross multiply
    10,091.70x = 15,132.15 × 4,241.70
  4. Step 4: Simplify right side
    10,091.70x = 64,186,040.66
  5. Step 5: Solve for x
    x = 64,186,040.66/10,091.70
  6. Step 6: Final answer
    x = 6,360.28

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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.