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Finding the Fourth Proportional to 39,313.44, 58,969.47 and 9,731.28

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Solution

The fourth proportional to 39,313.44, 58,969.47 and 9,731.28 is: 14,596.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,313.44 : 58,969.47 = 9,731.28 : x
  2. Step 2: Convert to fraction form
    39,313.44/58,969.47 = 9,731.28/x
  3. Step 3: Cross multiply
    39,313.44x = 58,969.47 × 9,731.28
  4. Step 4: Simplify right side
    39,313.44x = 573,848,424.02
  5. Step 5: Solve for x
    x = 573,848,424.02/39,313.44
  6. Step 6: Final answer
    x = 14,596.75

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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.