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Finding the Fourth Proportional to 7,892.87, 10,891.58 and 4,535.69

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Solution

The fourth proportional to 7,892.87, 10,891.58 and 4,535.69 is: 6,258.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892.87 : 10,891.58 = 4,535.69 : x
  2. Step 2: Convert to fraction form
    7,892.87/10,891.58 = 4,535.69/x
  3. Step 3: Cross multiply
    7,892.87x = 10,891.58 × 4,535.69
  4. Step 4: Simplify right side
    7,892.87x = 49,400,830.49
  5. Step 5: Solve for x
    x = 49,400,830.49/7,892.87
  6. Step 6: Final answer
    x = 6,258.92

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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.