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Finding the Fourth Proportional to 39,200.85, 58,801.28 and 9,618.30

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Solution

The fourth proportional to 39,200.85, 58,801.28 and 9,618.30 is: 14,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,200.85 : 58,801.28 = 9,618.30 : x
  2. Step 2: Convert to fraction form
    39,200.85/58,801.28 = 9,618.30/x
  3. Step 3: Cross multiply
    39,200.85x = 58,801.28 × 9,618.30
  4. Step 4: Simplify right side
    39,200.85x = 565,568,303.33
  5. Step 5: Solve for x
    x = 565,568,303.33/39,200.85
  6. Step 6: Final answer
    x = 14,427.45

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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.