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Finding the Fourth Proportional to 5,590.73, 7,715.99 and 3,730.97

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Solution

The fourth proportional to 5,590.73, 7,715.99 and 3,730.97 is: 5,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.73 : 7,715.99 = 3,730.97 : x
  2. Step 2: Convert to fraction form
    5,590.73/7,715.99 = 3,730.97/x
  3. Step 3: Cross multiply
    5,590.73x = 7,715.99 × 3,730.97
  4. Step 4: Simplify right side
    5,590.73x = 28,788,127.21
  5. Step 5: Solve for x
    x = 28,788,127.21/5,590.73
  6. Step 6: Final answer
    x = 5,149.26

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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.