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Finding the Fourth Proportional to 40,955.09, 61,432.02 and 13,253.09

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Solution

The fourth proportional to 40,955.09, 61,432.02 and 13,253.09 is: 19,879.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,955.09 : 61,432.02 = 13,253.09 : x
  2. Step 2: Convert to fraction form
    40,955.09/61,432.02 = 13,253.09/x
  3. Step 3: Cross multiply
    40,955.09x = 61,432.02 × 13,253.09
  4. Step 4: Simplify right side
    40,955.09x = 814,163,782.78
  5. Step 5: Solve for x
    x = 814,163,782.78/40,955.09
  6. Step 6: Final answer
    x = 19,879.43

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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.