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Finding the Fourth Proportional to 24,615.29, 36,918.79 and 7,972.90

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Solution

The fourth proportional to 24,615.29, 36,918.79 and 7,972.90 is: 11,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,615.29 : 36,918.79 = 7,972.90 : x
  2. Step 2: Convert to fraction form
    24,615.29/36,918.79 = 7,972.90/x
  3. Step 3: Cross multiply
    24,615.29x = 36,918.79 × 7,972.90
  4. Step 4: Simplify right side
    24,615.29x = 294,349,708.56
  5. Step 5: Solve for x
    x = 294,349,708.56/24,615.29
  6. Step 6: Final answer
    x = 11,958.00

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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.