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Finding the Fourth Proportional to 7,369.42, 11,033.88 and 6,664.72

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Solution

The fourth proportional to 7,369.42, 11,033.88 and 6,664.72 is: 9,978.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,369.42 : 11,033.88 = 6,664.72 : x
  2. Step 2: Convert to fraction form
    7,369.42/11,033.88 = 6,664.72/x
  3. Step 3: Cross multiply
    7,369.42x = 11,033.88 × 6,664.72
  4. Step 4: Simplify right side
    7,369.42x = 73,537,720.71
  5. Step 5: Solve for x
    x = 73,537,720.71/7,369.42
  6. Step 6: Final answer
    x = 9,978.77

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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.