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Finding the Fourth Proportional to 5,599.69, 7,730.90 and 4,976.91

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Solution

The fourth proportional to 5,599.69, 7,730.90 and 4,976.91 is: 6,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,599.69 : 7,730.90 = 4,976.91 : x
  2. Step 2: Convert to fraction form
    5,599.69/7,730.90 = 4,976.91/x
  3. Step 3: Cross multiply
    5,599.69x = 7,730.90 × 4,976.91
  4. Step 4: Simplify right side
    5,599.69x = 38,475,993.52
  5. Step 5: Solve for x
    x = 38,475,993.52/5,599.69
  6. Step 6: Final answer
    x = 6,871.09

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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.