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Finding the Fourth Proportional to 39,632.60, 59,431.60 and 14,991.32

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Solution

The fourth proportional to 39,632.60, 59,431.60 and 14,991.32 is: 22,480.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,632.60 : 59,431.60 = 14,991.32 : x
  2. Step 2: Convert to fraction form
    39,632.60/59,431.60 = 14,991.32/x
  3. Step 3: Cross multiply
    39,632.60x = 59,431.60 × 14,991.32
  4. Step 4: Simplify right side
    39,632.60x = 890,958,133.71
  5. Step 5: Solve for x
    x = 890,958,133.71/39,632.60
  6. Step 6: Final answer
    x = 22,480.44

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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.