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Finding the Fourth Proportional to 39,662.49, 59,469.80 and 18,607.15

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Solution

The fourth proportional to 39,662.49, 59,469.80 and 18,607.15 is: 27,899.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,662.49 : 59,469.80 = 18,607.15 : x
  2. Step 2: Convert to fraction form
    39,662.49/59,469.80 = 18,607.15/x
  3. Step 3: Cross multiply
    39,662.49x = 59,469.80 × 18,607.15
  4. Step 4: Simplify right side
    39,662.49x = 1,106,563,247.36
  5. Step 5: Solve for x
    x = 1,106,563,247.36/39,662.49
  6. Step 6: Final answer
    x = 27,899.49

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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.