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Finding the Fourth Proportional to 7,084.22, 9,764.18 and 4,842.21

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Solution

The fourth proportional to 7,084.22, 9,764.18 and 4,842.21 is: 6,674.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,084.22 : 9,764.18 = 4,842.21 : x
  2. Step 2: Convert to fraction form
    7,084.22/9,764.18 = 4,842.21/x
  3. Step 3: Cross multiply
    7,084.22x = 9,764.18 × 4,842.21
  4. Step 4: Simplify right side
    7,084.22x = 47,280,210.04
  5. Step 5: Solve for x
    x = 47,280,210.04/7,084.22
  6. Step 6: Final answer
    x = 6,674.02

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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.