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Finding the Fourth Proportional to 53,252.40, 79,943.40 and 40,000.80

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Solution

The fourth proportional to 53,252.40, 79,943.40 and 40,000.80 is: 60,049.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,252.40 : 79,943.40 = 40,000.80 : x
  2. Step 2: Convert to fraction form
    53,252.40/79,943.40 = 40,000.80/x
  3. Step 3: Cross multiply
    53,252.40x = 79,943.40 × 40,000.80
  4. Step 4: Simplify right side
    53,252.40x = 3,197,799,954.72
  5. Step 5: Solve for x
    x = 3,197,799,954.72/53,252.40
  6. Step 6: Final answer
    x = 60,049.87

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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.