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Finding the Fourth Proportional to 39,197.76, 58,796.72 and 9,615.68

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Solution

The fourth proportional to 39,197.76, 58,796.72 and 9,615.68 is: 14,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,197.76 : 58,796.72 = 9,615.68 : x
  2. Step 2: Convert to fraction form
    39,197.76/58,796.72 = 9,615.68/x
  3. Step 3: Cross multiply
    39,197.76x = 58,796.72 × 9,615.68
  4. Step 4: Simplify right side
    39,197.76x = 565,370,444.57
  5. Step 5: Solve for x
    x = 565,370,444.57/39,197.76
  6. Step 6: Final answer
    x = 14,423.54

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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.