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Finding the Fourth Proportional to 5,927.60, 8,891.40 and 4,084.40

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Solution

The fourth proportional to 5,927.60, 8,891.40 and 4,084.40 is: 6,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,927.60 : 8,891.40 = 4,084.40 : x
  2. Step 2: Convert to fraction form
    5,927.60/8,891.40 = 4,084.40/x
  3. Step 3: Cross multiply
    5,927.60x = 8,891.40 × 4,084.40
  4. Step 4: Simplify right side
    5,927.60x = 36,316,034.16
  5. Step 5: Solve for x
    x = 36,316,034.16/5,927.60
  6. Step 6: Final answer
    x = 6,126.60

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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.