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Finding the Fourth Proportional to 9,329.76, 13,999.50 and 4,396.86

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Solution

The fourth proportional to 9,329.76, 13,999.50 and 4,396.86 is: 6,597.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.76 : 13,999.50 = 4,396.86 : x
  2. Step 2: Convert to fraction form
    9,329.76/13,999.50 = 4,396.86/x
  3. Step 3: Cross multiply
    9,329.76x = 13,999.50 × 4,396.86
  4. Step 4: Simplify right side
    9,329.76x = 61,553,841.57
  5. Step 5: Solve for x
    x = 61,553,841.57/9,329.76
  6. Step 6: Final answer
    x = 6,597.58

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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.