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Finding the Fourth Proportional to 3,673.23, 5,509.75 and 899.88

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Solution

The fourth proportional to 3,673.23, 5,509.75 and 899.88 is: 1,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,673.23 : 5,509.75 = 899.88 : x
  2. Step 2: Convert to fraction form
    3,673.23/5,509.75 = 899.88/x
  3. Step 3: Cross multiply
    3,673.23x = 5,509.75 × 899.88
  4. Step 4: Simplify right side
    3,673.23x = 4,958,113.83
  5. Step 5: Solve for x
    x = 4,958,113.83/3,673.23
  6. Step 6: Final answer
    x = 1,349.80

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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.