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Finding the Fourth Proportional to 7,874.52, 10,866.84 and 4,730.70

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Solution

The fourth proportional to 7,874.52, 10,866.84 and 4,730.70 is: 6,528.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,874.52 : 10,866.84 = 4,730.70 : x
  2. Step 2: Convert to fraction form
    7,874.52/10,866.84 = 4,730.70/x
  3. Step 3: Cross multiply
    7,874.52x = 10,866.84 × 4,730.70
  4. Step 4: Simplify right side
    7,874.52x = 51,407,759.99
  5. Step 5: Solve for x
    x = 51,407,759.99/7,874.52
  6. Step 6: Final answer
    x = 6,528.37

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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.