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Finding the Fourth Proportional to 5,240.82, 7,865.93 and 4,684.65

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Solution

The fourth proportional to 5,240.82, 7,865.93 and 4,684.65 is: 7,031.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.82 : 7,865.93 = 4,684.65 : x
  2. Step 2: Convert to fraction form
    5,240.82/7,865.93 = 4,684.65/x
  3. Step 3: Cross multiply
    5,240.82x = 7,865.93 × 4,684.65
  4. Step 4: Simplify right side
    5,240.82x = 36,849,128.97
  5. Step 5: Solve for x
    x = 36,849,128.97/5,240.82
  6. Step 6: Final answer
    x = 7,031.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.