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Finding the Fourth Proportional to 3,572.99, 5,359.49 and 1,108.16

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Solution

The fourth proportional to 3,572.99, 5,359.49 and 1,108.16 is: 1,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572.99 : 5,359.49 = 1,108.16 : x
  2. Step 2: Convert to fraction form
    3,572.99/5,359.49 = 1,108.16/x
  3. Step 3: Cross multiply
    3,572.99x = 5,359.49 × 1,108.16
  4. Step 4: Simplify right side
    3,572.99x = 5,939,166.90
  5. Step 5: Solve for x
    x = 5,939,166.90/3,572.99
  6. Step 6: Final answer
    x = 1,662.24

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Double scale
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Similar ratio
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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.