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Finding the Fourth Proportional to 7,329.72, 10,116.54 and 6,739.32

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Solution

The fourth proportional to 7,329.72, 10,116.54 and 6,739.32 is: 9,301.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.72 : 10,116.54 = 6,739.32 : x
  2. Step 2: Convert to fraction form
    7,329.72/10,116.54 = 6,739.32/x
  3. Step 3: Cross multiply
    7,329.72x = 10,116.54 × 6,739.32
  4. Step 4: Simplify right side
    7,329.72x = 68,178,600.35
  5. Step 5: Solve for x
    x = 68,178,600.35/7,329.72
  6. Step 6: Final answer
    x = 9,301.67

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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.