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Finding the Fourth Proportional to 10,115.70, 15,173.55 and 10,050.90

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Solution

The fourth proportional to 10,115.70, 15,173.55 and 10,050.90 is: 15,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.70 : 15,173.55 = 10,050.90 : x
  2. Step 2: Convert to fraction form
    10,115.70/15,173.55 = 10,050.90/x
  3. Step 3: Cross multiply
    10,115.70x = 15,173.55 × 10,050.90
  4. Step 4: Simplify right side
    10,115.70x = 152,507,833.70
  5. Step 5: Solve for x
    x = 152,507,833.70/10,115.70
  6. Step 6: Final answer
    x = 15,076.35

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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.