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Finding the Fourth Proportional to 20,051.76, 30,084.54 and 8,966.10

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Solution

The fourth proportional to 20,051.76, 30,084.54 and 8,966.10 is: 13,452.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.76 : 30,084.54 = 8,966.10 : x
  2. Step 2: Convert to fraction form
    20,051.76/30,084.54 = 8,966.10/x
  3. Step 3: Cross multiply
    20,051.76x = 30,084.54 × 8,966.10
  4. Step 4: Simplify right side
    20,051.76x = 269,740,994.09
  5. Step 5: Solve for x
    x = 269,740,994.09/20,051.76
  6. Step 6: Final answer
    x = 13,452.24

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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.