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Finding the Fourth Proportional to 28,617.96, 42,933.07 and 9,644.46

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Solution

The fourth proportional to 28,617.96, 42,933.07 and 9,644.46 is: 14,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,617.96 : 42,933.07 = 9,644.46 : x
  2. Step 2: Convert to fraction form
    28,617.96/42,933.07 = 9,644.46/x
  3. Step 3: Cross multiply
    28,617.96x = 42,933.07 × 9,644.46
  4. Step 4: Simplify right side
    28,617.96x = 414,066,276.29
  5. Step 5: Solve for x
    x = 414,066,276.29/28,617.96
  6. Step 6: Final answer
    x = 14,468.76

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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.