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Finding the Fourth Proportional to 9,063.76, 12,509.32 and 5,338.96

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Solution

The fourth proportional to 9,063.76, 12,509.32 and 5,338.96 is: 7,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,063.76 : 12,509.32 = 5,338.96 : x
  2. Step 2: Convert to fraction form
    9,063.76/12,509.32 = 5,338.96/x
  3. Step 3: Cross multiply
    9,063.76x = 12,509.32 × 5,338.96
  4. Step 4: Simplify right side
    9,063.76x = 66,786,759.11
  5. Step 5: Solve for x
    x = 66,786,759.11/9,063.76
  6. Step 6: Final answer
    x = 7,368.55

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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.