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Finding the Fourth Proportional to 28,141.41, 42,191.10 and 9,410.34

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Solution

The fourth proportional to 28,141.41, 42,191.10 and 9,410.34 is: 14,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,141.41 : 42,191.10 = 9,410.34 : x
  2. Step 2: Convert to fraction form
    28,141.41/42,191.10 = 9,410.34/x
  3. Step 3: Cross multiply
    28,141.41x = 42,191.10 × 9,410.34
  4. Step 4: Simplify right side
    28,141.41x = 397,032,595.97
  5. Step 5: Solve for x
    x = 397,032,595.97/28,141.41
  6. Step 6: Final answer
    x = 14,108.48

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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.