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Finding the Fourth Proportional to 28,168.16, 38,870.96 and 16,843.96

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Solution

The fourth proportional to 28,168.16, 38,870.96 and 16,843.96 is: 23,244.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.16 : 38,870.96 = 16,843.96 : x
  2. Step 2: Convert to fraction form
    28,168.16/38,870.96 = 16,843.96/x
  3. Step 3: Cross multiply
    28,168.16x = 38,870.96 × 16,843.96
  4. Step 4: Simplify right side
    28,168.16x = 654,740,895.40
  5. Step 5: Solve for x
    x = 654,740,895.40/28,168.16
  6. Step 6: Final answer
    x = 23,244.01

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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.