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Finding the Fourth Proportional to 7,511.56, 10,368.86 and 6,724.24

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Solution

The fourth proportional to 7,511.56, 10,368.86 and 6,724.24 is: 9,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.56 : 10,368.86 = 6,724.24 : x
  2. Step 2: Convert to fraction form
    7,511.56/10,368.86 = 6,724.24/x
  3. Step 3: Cross multiply
    7,511.56x = 10,368.86 × 6,724.24
  4. Step 4: Simplify right side
    7,511.56x = 69,722,703.17
  5. Step 5: Solve for x
    x = 69,722,703.17/7,511.56
  6. Step 6: Final answer
    x = 9,282.05

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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.