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Finding the Fourth Proportional to 41,380.52, 62,070.80 and 10,215.80

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Solution

The fourth proportional to 41,380.52, 62,070.80 and 10,215.80 is: 15,323.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,380.52 : 62,070.80 = 10,215.80 : x
  2. Step 2: Convert to fraction form
    41,380.52/62,070.80 = 10,215.80/x
  3. Step 3: Cross multiply
    41,380.52x = 62,070.80 × 10,215.80
  4. Step 4: Simplify right side
    41,380.52x = 634,102,878.64
  5. Step 5: Solve for x
    x = 634,102,878.64/41,380.52
  6. Step 6: Final answer
    x = 15,323.70

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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.