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Finding the Fourth Proportional to 90,595.62, 135,893.43 and 28,270.98

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Solution

The fourth proportional to 90,595.62, 135,893.43 and 28,270.98 is: 42,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,595.62 : 135,893.43 = 28,270.98 : x
  2. Step 2: Convert to fraction form
    90,595.62/135,893.43 = 28,270.98/x
  3. Step 3: Cross multiply
    90,595.62x = 135,893.43 × 28,270.98
  4. Step 4: Simplify right side
    90,595.62x = 3,841,840,441.66
  5. Step 5: Solve for x
    x = 3,841,840,441.66/90,595.62
  6. Step 6: Final answer
    x = 42,406.47

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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.