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Finding the Fourth Proportional to 5,758.17, 7,940.84 and 5,328.63

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Solution

The fourth proportional to 5,758.17, 7,940.84 and 5,328.63 is: 7,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,758.17 : 7,940.84 = 5,328.63 : x
  2. Step 2: Convert to fraction form
    5,758.17/7,940.84 = 5,328.63/x
  3. Step 3: Cross multiply
    5,758.17x = 7,940.84 × 5,328.63
  4. Step 4: Simplify right side
    5,758.17x = 42,313,771.61
  5. Step 5: Solve for x
    x = 42,313,771.61/5,758.17
  6. Step 6: Final answer
    x = 7,348.48

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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.