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Finding the Fourth Proportional to 28,052.76, 42,074.28 and 9,333.12

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Solution

The fourth proportional to 28,052.76, 42,074.28 and 9,333.12 is: 13,998.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,052.76 : 42,074.28 = 9,333.12 : x
  2. Step 2: Convert to fraction form
    28,052.76/42,074.28 = 9,333.12/x
  3. Step 3: Cross multiply
    28,052.76x = 42,074.28 × 9,333.12
  4. Step 4: Simplify right side
    28,052.76x = 392,684,304.15
  5. Step 5: Solve for x
    x = 392,684,304.15/28,052.76
  6. Step 6: Final answer
    x = 13,998.06

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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.