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Finding the Fourth Proportional to 50,888.21, 70,234.13 and 28,234.49

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Solution

The fourth proportional to 50,888.21, 70,234.13 and 28,234.49 is: 38,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,888.21 : 70,234.13 = 28,234.49 : x
  2. Step 2: Convert to fraction form
    50,888.21/70,234.13 = 28,234.49/x
  3. Step 3: Cross multiply
    50,888.21x = 70,234.13 × 28,234.49
  4. Step 4: Simplify right side
    50,888.21x = 1,983,024,841.14
  5. Step 5: Solve for x
    x = 1,983,024,841.14/50,888.21
  6. Step 6: Final answer
    x = 38,968.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.