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Finding the Fourth Proportional to 9,367.64, 12,925.86 and 5,388.92

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Solution

The fourth proportional to 9,367.64, 12,925.86 and 5,388.92 is: 7,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.64 : 12,925.86 = 5,388.92 : x
  2. Step 2: Convert to fraction form
    9,367.64/12,925.86 = 5,388.92/x
  3. Step 3: Cross multiply
    9,367.64x = 12,925.86 × 5,388.92
  4. Step 4: Simplify right side
    9,367.64x = 69,656,425.47
  5. Step 5: Solve for x
    x = 69,656,425.47/9,367.64
  6. Step 6: Final answer
    x = 7,435.86

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Double scale
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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.