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Finding the Fourth Proportional to 39,243.52, 58,864.74 and 9,661.60

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Solution

The fourth proportional to 39,243.52, 58,864.74 and 9,661.60 is: 14,492.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,243.52 : 58,864.74 = 9,661.60 : x
  2. Step 2: Convert to fraction form
    39,243.52/58,864.74 = 9,661.60/x
  3. Step 3: Cross multiply
    39,243.52x = 58,864.74 × 9,661.60
  4. Step 4: Simplify right side
    39,243.52x = 568,727,571.98
  5. Step 5: Solve for x
    x = 568,727,571.98/39,243.52
  6. Step 6: Final answer
    x = 14,492.27

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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.