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Finding the Fourth Proportional to 28,010.64, 42,017.04 and 7,234.14

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Solution

The fourth proportional to 28,010.64, 42,017.04 and 7,234.14 is: 10,851.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.64 : 42,017.04 = 7,234.14 : x
  2. Step 2: Convert to fraction form
    28,010.64/42,017.04 = 7,234.14/x
  3. Step 3: Cross multiply
    28,010.64x = 42,017.04 × 7,234.14
  4. Step 4: Simplify right side
    28,010.64x = 303,957,149.75
  5. Step 5: Solve for x
    x = 303,957,149.75/28,010.64
  6. Step 6: Final answer
    x = 10,851.49

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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.