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Finding the Fourth Proportional to 7,517.76, 11,213.08 and 7,084.12

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Solution

The fourth proportional to 7,517.76, 11,213.08 and 7,084.12 is: 10,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.76 : 11,213.08 = 7,084.12 : x
  2. Step 2: Convert to fraction form
    7,517.76/11,213.08 = 7,084.12/x
  3. Step 3: Cross multiply
    7,517.76x = 11,213.08 × 7,084.12
  4. Step 4: Simplify right side
    7,517.76x = 79,434,804.29
  5. Step 5: Solve for x
    x = 79,434,804.29/7,517.76
  6. Step 6: Final answer
    x = 10,566.29

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Half scale
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Double scale
Find fourth proportional to 7,518.76, 11,214.57 and 7,085.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.