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Finding the Fourth Proportional to 34,697.90, 52,057.74 and 20,654.90

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Solution

The fourth proportional to 34,697.90, 52,057.74 and 20,654.90 is: 30,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,697.90 : 52,057.74 = 20,654.90 : x
  2. Step 2: Convert to fraction form
    34,697.90/52,057.74 = 20,654.90/x
  3. Step 3: Cross multiply
    34,697.90x = 52,057.74 × 20,654.90
  4. Step 4: Simplify right side
    34,697.90x = 1,075,247,413.93
  5. Step 5: Solve for x
    x = 1,075,247,413.93/34,697.90
  6. Step 6: Final answer
    x = 30,988.83

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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.