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Finding the Fourth Proportional to 28,190.16, 38,808.72 and 24,464.16

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Solution

The fourth proportional to 28,190.16, 38,808.72 and 24,464.16 is: 33,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190.16 : 38,808.72 = 24,464.16 : x
  2. Step 2: Convert to fraction form
    28,190.16/38,808.72 = 24,464.16/x
  3. Step 3: Cross multiply
    28,190.16x = 38,808.72 × 24,464.16
  4. Step 4: Simplify right side
    28,190.16x = 949,422,735.48
  5. Step 5: Solve for x
    x = 949,422,735.48/28,190.16
  6. Step 6: Final answer
    x = 33,679.22

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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.